" challenger 2 ", 150 mm, 17 -pound, 1931, 2 mm, acs, anti-tank, armored vehicles, army, arr. 1930, art, artillery, artillerymen, battle, beach, birch, bishop, challenger 2, class, construction, database, equipment, field, firefly, flames of war, front, game, german, gun, howitzer, howitzers, installation, leopard, leopard-a4m, lightweight, machine gun, mbt, men, military equipment, miniatures, of the sample, pattern, picture, plan, position, rearmament, red, river, road, russia, second world war, self-propelled, severe, sfh 18, sherman, t-26, t-72b, tank, tankers, tanks, the, the field, two-tower, two-towered, valentine, war, world war ii, ww2, ww2.