19 May 2021 Garand Picture of the Day - Eniwetok

https://www.thoughtco.com/thmb/OoMVG...c384db6f2f.jpg

The Battle of Eniwetok was a battle of the Pacific campaign of World War II, fought between 17 February 1944 and 23 February 1944, on Enewetok Atoll in the Marshall Islands. The invasion of Eniwetok followed the American success in the Battle of Kwajalein to the southeast. Capture of Eniwetok would provide an airfield and harbor to support attacks on the Mariana Islands to the northwest. The operation was officially known as "Operation Catchpole", and was a three-phase operation involving the invasion of the three main islands in the Eniwetok Atoll.

Battle of Eniwetok - Wikipedia

What is the square blocks on his back? FO?

Quote:

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Originally Posted by ed skeels

the square blocks on his back

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Those were markers that could be observed at distance to show the right or the left extreme of a unit. The markers being worn are spoken of in written history of this and other attacks.

Test site of the first H-bomb -- it's still radioactive.