Ключевые слова: 20th century, air, airplane, ammunition, anti aircraft, antiaircraft, antiaircraft gun, armament, armor, armored, armour, army, artillery, aviation, barrel, battle, battlefield, biggest war, camouflage, cannon, defense, flak, gun, history, industry, legendary, machine gun, machinegun, memorial, militarily, monument, museum, old, power, red army, russian, shot, soviet industry, steel, symbol, victory, vintage, war, war campaign, war industry, weapon, weapons, weapons theme, world war ii,