Images

A photograph showing tanks of the German 6th Panzer Division in 1940. (Imperial War Museums)

A map showing the German advances through Belgium, the Netherlands, and France which isolated the British Expeditionary Force and necessitated the Dunkirk evacuation of May-June 1940. (United States Military Academy)

An RAF Lockheed Hudson conducting reconnaissance during the Dunkirk evacuation of May-June 1940. The smoke is coming from the damaged oil refinery near the port. (Imperial War Museums)

A 1940 painting by Charles Ernest Cundall titled The Withdrawal from Dunkirk showing the Dunkirk evacuation of May-June 1940. (Imperial War Museums)

A photograph of Allied troops wading out into the sea awaiting rescue by boat during the Dunkirk evacuation of May-June 1940. Imperial War Museums

The French destroyer Bourrasque sinking while carrying troops during the Dunkirk evacuation of May-June 1940. (Imperial War Museums)

Marble portrait heads of four Greek philosophers (Socrates, Antisthenes of Athens, Chrysippus, and Epicurus), Roman copies after Hellenistic originals. The British Museum, London.

Crazy Horse and his band of Oglala Sioux on their way from Camp Sheridan to surrender to General Crook at Red Cloud Agency on Sunday, 6 May 1877. Wood engraving by the artist Berghavy from sketches by Mr. Hottes, 1877. Library of Congress...

7th Cavalry Regiment guidon found at Slim Buttes fastened to the lodge of Chief American Horse. Although American Horse (the Elder) was not present at the Battle of the Little Bighorn, war trophies such as the guidon encouraged the destruction...

General William T. Sherman and Commissioners in Council with Sioux Chiefs at Fort Laramie, Wyoming, signing the Fort Laramie Treaty, 1868, ending Red Cloud's War. Native Americans are seated on the ground, commissioners on chairs. Seated...