noun
field cap (WWII Japanese military)
Refers specifically to the soft field cap worn by Japanese soldiers during World War II. Not a general term for combat headgear.
祖父の遺品から戦闘帽が出てきた。
A field cap was found among my grandfather's belongings.
資料館に当時の戦闘帽
A field cap from that era is on display at the museum.