Original U.S. Vietnam M1 Helmet with USMC Camouflage Cover and Firestone Liner U.S. Equipment The 5th Defense Battalion was

The 5th Defense Battalion was re-designated as the 5th Antiaircraft Artillery Battalion in April 1944 and took part in the Battle of Okinawa in 1945

There is also a trace of an inspector "SWP" cartouche by the lock screws

with some of the stitching having popped over the years

Personal carrying equipment (M-1961 or M1956) was usually worn under the vest

introduced a wide variety of ärmelbinden (armbands)

Original U.S. Vietnam M1 Helmet with USMC Camouflage Cover and Firestone Liner U.S. Equipment The 5th Defense Battalion wasOriginal Item: Only One Available. The M1 helmet is a combat helmet that was used by the United States military from World War II until 1985, when it was succeeded by the PASGT helmet. For over forty years, the M1 was standard issue for the U. S. military. The M1 helmet has become an icon of the American military, with its design inspiring other militaries around the world. Vietnam War era M 1 helmet shells have a set of swivel (movable) chinstrap