A Guide to U.S. Army Field Jackets - From M-41 ... - Heddels
· M-41 (1940-1945) Soldier on the right is wearing the M-1941. Image via Wix.com. The M-1941 was a good idea, but ultimately a poorly-executed one. By the outbreak of WWII, the U.S. army uniform had become a tighter and impractical version of the uniform worn in WWI. In its current state, the field jacket was suitable only for garrison duty.