GI

Adjective

abbreviation alt-of initialism not-comparable US

(military) Initialism of general issue. Given to a soldier by the army (as an item), rather than brought from home; or used by the army (as a procedure), and different from its civilian counterpart.

Japanese Meaning

軍隊で標準的に支給または使用される装備品や手続きを指す（民生用品との区別がなされる） / 軍用の一般規格や、兵士に与えられる物品・装備としての意味

What is this buttons?

The sergeant inspected every soldier's GI canteen before the march.

Google Translation / DeepL Translation

軍曹は行進の前に、各兵士に支給された水筒を点検した。

Details

Sense（1）

(military) Initialism of general issue. Given to a soldier by the army (as an item), rather than brought from home; or used by the army (as a procedure), and different from its civilian counterpart.