The Marshall Islands & the Bomb
Between 1946 and 1958, the United States detonated 67 nuclear bombs on, in and above the Marshall Islands — vaporizing whole islands, carving craters into its shallow lagoons and exiling hundreds of people from their homes.
Operation Crossroads
The first testing series in the Marshall Islands occurred under Operation Crossroads. The purpose of Operation Crossroads was to investigate the effect of nuclear weapons on naval warships. Testing in the islands began at Bikini Atoll with the Shot Able test, on July 1, 1946. After Shot Able, the Bulletin of the Atomic Scientists confirmed the power of these weapons. They determined that soldiers on ships up to a mile away from this explosion would be instantly be killed.
The U.S. then conducted the Shot Baker test on July 25.
These tests were the first time that the U.S. tested nuclear weapons since the Trinity Test in 1945. These were also the first U.S. nuclear detonations since the “Little Boy” and “Fat Man” bombs dropped over Japan. Operation Crossroads ended on August 10, 1946, due to concerns over radiation, especially to the soldiers involved. In 1969, the U.S. began a long term project to decontaminate Bikini Atoll.
Operations Greenhouse and Ivy
In January of 1950, President Truman made the decision to increase U.S. research into thermonuclear weapons, which would lead to further U.S. nuclear testing. Operation Greenhouse, was a series of nuclear tests conducted at Eniwetok Atoll in 1951. These were done to test design principles that would later become pivotal in the development of the hydrogen bomb. The tests aimed to reduce the overall size of nuclear weapons, including the necessary amount of fissile material, while increasing their destructive power.
The U.S. conducted its first series of thermonuclear tests, Operation Ivy, at Eniwetok Atoll, in November of 1952. Shot Mike was the first successful hydrogen bomb test. Then, on November 16, the U.S. conducted the King Shot.
Castle Bravo
The U.S. conducted its largest nuclear detonation ever, Castle Bravo, at Bikini Atoll on March 1, 1954. This was part of Operation Castle, a series of thermonuclear tests. Bravo was over 1,000 more times powerful than “Little Boy.” Bravo used a device called “Shrimp” which used lithium deuteride as its fuel. Bravo was the first test of a deliverable hydrogen bomb.
Despite potential risks, Major General Percy Clarkson and scientific director Dr. Alvin C. Graves ordered the test to continue as planned. Due to Castle Bravo radioactive debris was released into the atmosphere, and to surrounding atolls. The test was more powerful than scientists predicted. Ocean currents, weather conditions, and wind patterns contributed to this spread of fallout and debris. The fallout was composed of pulverized coral, water, and radioactive particles, and it fell into the atmosphere appearing as ashy snowflakes. This affected nearby atolls and U.S. servicemen. Traces of radioactive material were later found in parts of Japan, India, Australia, Europe, and the United States. This was the worst radiological disaster in U.S. history and caused worldwide backlash against atmospheric nuclear testing.
Relocation of the Marshallese
In 1946, Navy Commodore Ben Wyatt met with the 167 people living on Bikini Atoll. Wyatt asked the Marshallese to relocate, and for use of their atoll “for the good of mankind.” He explained that they were a chosen people and that perfecting atomic weapons could prevent future wars. The residents were promised they could return one day, but realistically they had no choice in this matter. Immediately following this speech, the U.S military began preparations to relocate the residents to Rongerik Atoll, an uninhabited island with limited resources 125 miles away. Residents of Bikini Atoll resettled in 1969, but then evacuated in 1978, after radiation levels were determined to be excessive.
A month later, the Marshallese filed a complaint with the UN, but this did not prevent U.S. nuclear testing. In 1948, the U.S. government forced residents of Eniwetok Atoll to evacuate due to expanded nuclear testing with Operation Sandstone.
Timeline:
7/1/1946: Testing begins at the Marshall Islands, with Shot Able.
7/25/1946: Shot Baker is conducted, under Operation Crossroads.
4/30/1948: Shot Yoke, under Operation Sandstone, is conducted. This was the first fission weapon to use a levitated core design.
4/20/1951: Shot Easy nuclear test is conducted at Eniwetok Atoll, under Operation Greenhouse. The Easy test was meant to test a new, lighter implosion bomb.
5/1951: Operation Greenhouse testing occurred at Eniwetok Atoll.
11/1/1952: The Mike Shot is conducted at Eniwetok, under Operation Ivy. This was the first U.S. thermonuclear test.
6/28/1958: The Oak test is conducted, at Eniwetok Atoll, under the Operation Hardtack I series. This was the 6th largest U.S. nuclear test. Hardtack I included 35 total tests. Hardtack I was the last testing series conducted on the Marshall Islands.
Clean up is still going on today.
Click on images to enlarge.
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Military Humor –
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Farewell Salutes –
Joseph Bullock – Sarasota, FL; US Air Force / FHP Trooper
Kirk Douglas (Issur Danielovitch) 103 – Amsterdam, NY; US Navy, WWII / actor
Gus Elias – Cannonsburg, PA; US Army Air Corps, WWII, APO, antiaircraft
Paul Farnes – Hampshire, ENG; RAF, WWII, ETO, 501st Squadron & 229th Wing Commander (Ret. 20 y.)
Oscar E. Koskela – Detroit, MI; USMC, PTO, Cpl., HQ Co./29/2 Marine Division, KIA (Saipan)
John McGlohon – Asheboro, NC; US Army Air Corps, WWII, CBI, ATO & PTO, Sgt., aerial photographer (only one to take pictures of the Hiroshima blast)
Harold Rafferty – Louisville, KY; US Army, WWII, PTO
Dan E. Reagan – USA; US Navy, WWII, PTO, USS Oklahoma, fireman 1st Class, KIA (Pearl Harbor)
Frank Wasniewski (100) – Jersey City, NJ; US Army, WWII, PTO, 98th Coast Artillery
Sophie Yazzie (105) – Canyon de Chilly, AZ; US Army Air Corps WAC, (a member of the Navajo Nation)
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Posted on February 10, 2020, in Uncategorized, WWII and tagged 1940's, A-Bomb, Bikini Islands, History, Marshall Islands, Military, nuclear, Pacific War, radiation, WW2, WWII. Bookmark the permalink. 131 Comments.
I was born on the Majuro however was adopted into the US. I would love to hear what the locals have to say about this day. Its sad that the radiation even got onto the capital but yet is still liveable.
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I will not even attempt to answer for them. I hope this site puts you in the right direction….
http://www.pireport.org/articles/2017/03/01/marshall-islands-marks-71st-anniverary-first-nuclear-test-bikini-atoll
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Amazing history that’s almost been forgotten. Love the comic–about Excel. My son hears that often, too.
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It was such a big part of lives back then and – poof – our memories forgot about it. haha, your son may want to stop telling people about his abilities, eh?
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A fellow blogger is looking for an editor for his book. As a writing teacher, I thought you might be able to help him out.
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Thank you for visiting.
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I’ll never understand the concept of nuclear testing and threats and war in general. People harming people in the name of peace doesn’t make sense to me. Perhaps we can learn from history?
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Schools are teaching less and less history – and even when they did, they did not stress just how much we should be remembering and learning from past mistakes. War, it seems, is ingrained in our nature – perhaps because we have no other predator to keep our numbers in check?
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Wow! And radiation levels were still high in the 70’s. This was far more widespread than I knew.
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And still a problem today!
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Still, forty-some years later? My, my…
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I remember learning about the devastating effects of the testing on Bikini Atoll. Great article, GP.
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Thank you, Mark. I appreciate your visit!
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Very informative piece of history gp, I never realised the extent of these tests until during my army days as an Occupational Health and Safety officer, I was tasked with going to Maralinga Island to test radiation levels, ground zero actually recorded clear but for miles around there was topsoil radiation, the winds and climate had moved ground zero. I think the Marshall Island residents got a raw deal all round. Cheers.
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I totally agree with you. I knew you had that position, but I hadn’t put 2 & 2 together for you to have been there testing the site!! Did they have haz-mat suits to give you?
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Only suits I had in my time were surgical scrubs and respirators.
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Sorry to hear that.
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It’s hard to completely understand it now, and even when trying to grasp it from the military perspective prevailing at the time.
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This is probably when the world turned so political. You know how I feel about politicians!!!
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I’m with ya on that, buddy !
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Yeah .. they do have to be tested I suppose. If they exist at all.
These days I figure they can simulate such things on computers?
I hope.
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I would think so, but Iran and North Korea want to keep actually testing going on.
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Let us hope the future generations of leaders around the world are wiser. Much irreparable damage occurred in the last century, and is still ongoing. The view of the Earth from space speaks volumes. There is no where else to go if we foul this planet beyond repair. And what will have been gained? Nothing.
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Narcissists can’t see past their own noses.
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A couple of recent articles about the problems there now:
https://www.military.com/daily-news/2019/12/26/congress-directs-repairs-nuclear-waste-coffin-left-over-atomic-bomb-tests.html
https://www.latimes.com/projects/marshall-islands-nuclear-testing-sea-level-rise/
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Thank you for contributing to the post, Linda. I love it when a post inspires someone to research on their own.
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Thank you very much!!
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I just spotted this story, are you familiar with it?
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Operation Ivy, Operation Greenhouse, Operation Sandstone — they all sound so pleasant. A friend who was in the military once told me, “The nicer the name, the worse the intended consequences.” As you’ve pointed out, there are times when the unintended consequences take it to another level.
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I remember growing up, the term – greenhouse affect. Who knew, eh?
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I wish we could live in peace.
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That’s a dream most of us have.
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Its crazy to think that at one time the world did nuclear tests above ground level
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Below ground is still bad. Each detonation moves the Earth’s axis – the world can not continue to that. Nature is a very delicate balance.
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Wow didn’t know that
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Hi GP, I contacted a friend but he lives far from Mariveles where the village of Cabcaben is located. My apology, I can not be of any help.
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I appreciate you trying, Roy. Thank you very much!
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If only those scientists at Cambridge back in the 1930s had not been able to split the atom! I bet that the only good thing ever to come out of this sad story will be the bikini.
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Could be, John. Sadly, we can’t go back and our fates are left to …. who?
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I had no idea of the extent of the testing that went on in the islands. They would have contaminated not only the islands but the ocean as well. Too many care only about their own little project and not its effect on the rest of the world. Thanks for telling us the whole story.
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Well, I’d say you pretty much summed up the whole fiasco for us, Bev!! The scientists did try to halt the Hiroshima bomb – with no success.
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Well said, Bev. I had no idea of the extent of the testing either.
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I had an uncle that radiation from the being in the Bikini Island turned his liver to stone.
He died as a result of the radiation and the government denied him and help or compensation as a result.
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That is awful, Rick. I had no idea. That sounds like the troops in Nam with Agent Orange. That, to me, is comparable to leaving a man behind!!!
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Reblogged this on depolreablesunite.
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Thank you, Rick.
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HeeHoo time again:
Heehoo has the biggest gun gets to hold the ground.
And heehoo has a functioning deliverable nuke has a pretty big gun … so no wonder a few score natives (armed with spears?) were casually ‘relocated’.
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You’d think we could have come up with a better plan.
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Hubris, coupled with ability. Brrr …
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All these comments mentioning morality and justice and ‘native rights’ and stuff (Diego Garcia, anyone) suggest there’s a lot of naive idealists out there.
To read the story of Diego Garcia is to turn the stomach a wee bit …
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Diego Garcia residents being moved was not due to bomb testing, but still an unusual development in the more modern day and age. Have you done a post on that area? My apologies if I’ve forgotten.
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Post? No … but the story is actually quite sickening. Might makes right …
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No always – especially these days.
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I remember as a young guy in New Zealand walking through (summer, about three-fourish, afternoon) unexplained showers of a lightish ‘snowy ash’ – kind of flakes. Nobody could explain and in honesty I don’t think most even noticed. Place was Papatoetoe (official pronunciation Parper/toy/toy) (but to most it’s still Pappa/towee/towee).
Now I wonder if I’ve walked through an unmentionable?
Anyway, sure might be better/more realistic than ‘flying saucers’.
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If the timeline fits, you just might have; there’s nothing sci-fi about that idea.
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great post friend.
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Thank you, William.
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Reblogged this on John Cowgill's Literature Site.
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Thank you, John!!
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You are very welcome.
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At 1,000 times more powerful that the previous two A-bombs, I find it impossible to believe that all involved, scientific and military, were not fully aware of the ramifications of detonating H-bombs in these tests. But I am also reminded that the Cold War ‘Arms Race’ made many normal considerations secondary to ‘keeping ahead of the enemy’.
Great post, GP.
Best wishes, Pete.
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You’re right, Pete, sorry to say. But the scientists had the decency to sign a petition to try and halt the Hiroshima bomb, why not their own people?
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I think you’re right. There was the attitude that whoever has the bigger bomb wins, no matter what the human or environmental cost.
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Exactly.
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No more nuclear testing please…
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That’s what the the Nuclear Test Ban Treaty between Russia and the U.S. was all about in 1963. But now that other countries have it ……
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67 tests in a 12 year period. That’s going to take some clearing up!
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I agree. The half-life of radioactive material moves rather slowly.
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Thank you for the lesson, GP! I have to learn much more about this. Now i know, i am real history newbie. Best wishes, Michael
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Researching history can be very rewarding and informative of how our world got to this stage it’s in now. I’m thrilled to hear of your interest, Michael.
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Oh yes, GP! This forced me to get the information. You can not understand whats actually happens, without the view to the past. As example our nobility, and their influence to the politicans.;-) DJT must be their evilst nightmare. Lol
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Glad to hear you enjoy the research!!
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I believe technically, the Hiroshima bombs were “atomic”. Subsequent testing involved “nuclear” bombs. Still, when I watch how the Navy “cleaned” up the surviving surface warships after a blast, I am dumbfounded. Did you hear that at Chernobyl, the radioactivity created a new type of fungus or mold that eats radiation (or something like that)?
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That would be great to use in cleaning up the Bikini Atoll, wouldn’t you say?
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I was aware of the relocation of islanders, but not the magnitude, nor the details of the entire testing program. Once again, thank you for educating me, GP.
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It’s easy to forget those days – in the middle of a cold war, who really knew, eh?
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Oh, anything besmirching America was publicized in Russia at that time! It was done by a variety of condemning slogans, yet without any actual details.
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I believe it – we were in the cold war (IMO) even before WWII was over. We just never trusted each other. I’m sure the US did the same.
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Who was there to trust – Stalin, may his memory be erased forever?
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Ummm…..
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Does that mean you are taking the 5th, my friend?
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You made me think. (ouch – that hurts! 🙂 )
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LOL I know whereof you speak, GP.
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(smilin’)
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Excellent post, GP. Like you, I wonder why the scientists didn’t raise an issue. Who thought that testing highly radioactive material in the Pacific was a good idea.?
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They signed a petition before Hiroshima, but not when their own people were being bombed – doesn’t make sense.
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It was not well done. I don’t suppose the scientists cared much about the ramifications (I can’t believe they had no idea) they got high on the development of their awesome WOMD’s and were tunnel visioned.
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Could very well be. Scientific curiosity or adulation from their fellows?
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What a great history recap (as you always provide)! I was actually just recently reading about the Marshall Island bombings when I learned I had an uncle who was there at the time and was injured. Very interesting. Thanks for sharing! And as always, salute to you, Sir! ❤
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I appreciate your commenting on this subject, Rachel. Was your uncle injured due to the tests? I would love to hear anything you know about him (if you have the time.)
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Sorry , I failed to mention the year in my comment :: 1946 .
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Much appreciated!
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I have a copy of my father’s orders : ” 1 Sept. Proceed to USS Haven on or about 26 March for transportation to Bikini .” He was a Navy medical officer at the Bikini test . Was it the first Bikini test ? The Navy had sent him through UC Berkeley to attain a PhD in nuclear physics . The medical personnel immediately realized that the fleet was too close to the explosion. My father’s superior had sent a letter to the fleet admiral to move the ships back and the answering letter explained that a Navy fleet was not like ducks in a bathtub and could not be so easily moved , so they stayed put .
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That partly explains my feelings that the politicians and military did not fully understand the ramifications of the tests. Thank you for sharing the data saved from your father, Dan.
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Reblogged this on Practically Historical.
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Thank you very much.
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Very interesting. I sure didn’t know that whole timeline.
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Pretty rough, eh?!
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Reblogged this on Dave Loves History.
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Thank you, Dave!
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I did not know how extensive the nuclear tests were. And those “chosen people”! What a joke! Leave it to the government to sugar-coat everything.
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I keep wondering if the politicians understood the ramifications of the tests. I think the scientists should have stepped up and halted the tests.
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I’m old enough to remember those “tests”, and embarrassed to admit how little thought was given to the people adversely affected.
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Do you recall if the politicians and military understood the ramifications of doing these tests? I feel it should have all been halted by the scientists. No?
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This was a real eye-opener. I really only come across the Marshall Islands as a flag of convenience for ships. It’s a fairly sordid story. Not one to be proud of.
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Oh definitely not! It’s a huge blot on our history. I can’t help but wonder why the scientists didn’t stop it all.
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As you would know ours was at Maralinga, and indigenous people were summarily moved from the region. Similar time period. I had read a little of the Marshall Islands testing many years ago, I still feel a sorrow for how they were treated.
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It is an awful blot on our history. But I can’t help thinking that many were unaware of the affects. It should have been the scientists to end these projects. IMO
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Yes, good point GP
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Too bad there wasn’t a spare planet to test on.
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haha, by the time we get to another planet – we’ll have something else to test!! You know humans – they can never leave well enough alone!!
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Thank you for this fascinating blog! I wasn’t aware of the details of this part of History and now I am excited for the possibilty of answering a question about it in my next Pub Quiz! Especially as you made the Time line so clear!
Best Wishes,
Charlotte
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Terrific!! The next answer you get right – have an ale for me too!!
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This got me too upset to finish reading. Soldiers instantly dying a mile from the blast. That was the last line I could bear to read.
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I can fully understand, Amy. This is an awful blot on our history, but it can’t be erased.
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No, it cannot. It just makes me sick.
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Understood.
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I’m surprised the soldier was using Excel instead of Powerpoint. The Pentagon abounds in Powerpoint Rangers and Death by Powerpoint is not yet recognized as a cause of death, Fascinating post–guess we don’t treat ‘others’ much better than the countries we condemn for doing something similar.
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On this it is hard for me to condemn too many, except the scientists. Despite my own education being mainly science orientated, I doubt many of the politicians or military understood the radiation or bomb at all. It should have been the specialists to explain the affects. IMO
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So many?! I wonder how this works today, unbeknown to (most of us).
A MAC is great, have you considered getting one in the near future? 🙂
The last joke-image reminded me of the last meeting in the photographic society. A member volunteered to show he edits his photos and it obviously was a fatal mistake as he couldn’t explain or find anything. 🙂
The storm Ciara is chasing our garden waste bags through the garden right now, have to rush and rescue them. Take care, GP Cox,
warm greeting from the stormy coast! x
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Dina,
No, I haven’t really gotten ready to purchase a new computer, but I will consider a Mac when I have to. As far as that last cartoon goes – I’m one of the people leaning over his shoulder because I’m so computer illiterate.
I appreciate you stopping in to read this article and comment. I certainly hope Ciara doesn’t destroy your garden!
Try to enjoy the week, the storm should pass soon.
GP Cox
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Nine years living with “excessive radiation” on Bikini Atoll, horrifying.
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I can’t even imagine it!!
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I knew about the testing, that people had been relocated and we grew up fearing the fallout, but I had no idea there were so many tests. The chosen people, indeed.
I have to add that I identify with the cartoon at the bottom. Good job!
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haha, funny, I was thinking of you when I put it in!!!
And lucky I was able to get it in the post too. This Microsoft 10 picture set up is making me wish I bought a MAC!!
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Changing tech always disturbs the universe for a while. Not only was the caption funny, but I have been in that scene more than a few times.
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I’ll bet you have. If we lived closer – I would probably have been the one to put you in that chair in the first place!! 🙂
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I had no idea of the enormity of this
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I appreciate you coming by to read it Derrick.
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