Experimental camouflage on the fuselage of a Sopwith camel, developed during the First World War to disguise the aircraft's direction of flight. London The pre-Dreadnought battleship HMS AGAMEMNON

The pre-Dreadnought battleship HMS AGAMEMNON

HM King George V

The canaries were kept not only to cheer the wounded but also to give warning of gas attacks

The Prime Minister Winston Churchill inspects the 1st American Squadron of the Home Guard on Horse Guards Parade

Men of the East Yorkshire Regiment crossing newly won ground at Frezenburg in 1917 during the Third Battle of Ypres

Experimental camouflage on the fuselage of a Sopwith camel, developed during the First World War to disguise the aircraft's direction of flight. London The pre-Dreadnought battleship HMS AGAMEMNONExperimental camouflage on the fuselage of a Sopwith camel, developed during the First World War to disguise the aircraft's direction of flight.