SIGNAL

Used in war
All ye inhabitants of the world, and dwellers on the earth, see ye, when he lifteth up an ensign on the mountains; and when he bloweth a trumpet, hear ye. (Isaiah 18:33All ye inhabitants of the world, and dwellers on the earth, see ye, when he lifteth up an ensign on the mountains; and when he bloweth a trumpet, hear ye. (Isaiah 18:3))
See ARMIES
See ENSIGNS (banners)
See TRUMPETS