SZT353870:
German dispatch rider wearing a gas mask in the Ardennes during the Second Battle of the Aisne, France 6th July, 1917 (b/w photo) / Bridgeman Images
SZT355502:
Troops known as 'Askaris' occupying a trench near Kilimanjaro, fighting as part of the Schutztruppe in Tanzania, German East Africa, 1914-18 (b/w photo) / Bridgeman Images
SZT440585:
Parade of thousands of armed militia demonstrate the enduring character of the Socialist revolution, a dew days before the CIA-supported Bay of Pigs Invasion, 1961 (b/w photo) / Bridgeman Images