Full Metal Jacket - from our story 'World War 1 Body Armor: 1914-1918' circa 1917: A suit of heavy body armour used by the Americans in France. (Photo by Central Press/Getty Images) View The Article THIS WAY FOR ALL GOOD THINGS Visit the shop 15% OFF ANY 3 OF OUR NEW MUGS Discover Our PrintsExplore our Prints Shop Editor’s picks TODAY: 15% off any 3 t-shirtsDiscover Our 100% Organic Cotton T-Shirts Collect our postcards 10% Off – JUST SIGN-UP FOR FREE: First Name Last Name Leave this field empty if you're human: