Genuine US Military issue
These shirts were worn during 'War Games' (training excersises) by US Army personnel posing as opposition force (OpFor) or 'Aggressors'. The bright emerald green colour was implemented on uniforms to make it easier to differentiate between friendly forces and foes. Other uniform components were also issues which varied from the general issued uniform of the era.
Shown in the last photos are men posing as OpFor during war games - They wear aggressor helmets with a notable crest and other uniform components including these shirts and Emerald Green field jackets.
New, old stock in mint condition.