On 25 June 1950, Communist North Korean troops invaded South Korea and rapidly advanced southwards. This image shows British troops leaving Hong Kong to join United Nations forces in South Korea, September 1950.
South Korean soldiers, separated from their unit during a Chinese offensive, make their way back to the United Nations lines.
Encouraged by the UN, many countries sent troops to support the South. Soldiers from India, Britain, New Zealand and Australia show the Commonwealth contribution to the war effort in Korea.
HMS Belfast firing a salvo from her 6-inch guns against enemy troop concentrations on the west coast of Korea, 1951.
Flares sent up along the Imjin River to illuminate enemy patrols.
On 27 July 1953, an armistice was signed agreeing that Korea would remain a divided country. Here Major T H Wilson of the 2nd Battalion Royal Australian Regiment reads ceasefire instructions to Headquarters personnel.
Operation 'Supercharge', which began on 2 November, was the final phase of General Montgomery's great battle. After a costly two-day slogging match to penetrate the German defence lines and minefields, the British tanks finally broke through. Rommel ordered a withdrawal, and his broken formations streamed back westwards. The well-armed and reliable US-built Sherman was beginning to replace inferior home-grown designs in British armoured regiments.
Click through to the Collections item to see licencing options
In 1940 Italy's fascist dictator Benito Mussolini wanted to expand his African Empire. His forces in Ethiopia attacked neighbouring British possessions, but in 1941 were expelled and comprehensively defeated.
Incursions from Libya into Egypt also met defeat. The British forced the Italians into headlong retreat. In February 1941 Hitler sent the Afrika Korps, commanded by General Rommel, to bolster his ally. The German counter-offensive pushed the British back to the Egyptian frontier.
The see-saw struggle in the Western Desert continued for the next 18 months. British forces, under a succession of commanders, were continually out-fought by Rommel. The vital port of Tobruk was besieged twice.
The turning point came at El Alamein in October 1942, when General Montgomery inflicted a decisive defeat on the Axis forces. In November, Anglo-American divisions landed in French Algeria and Morocco. Rommel retreated into Tunisia. The Germans, trapped between two Allied armies, surrendered in May 1943.