After defeating France in June 1940, Hitler assumed Britain would sue for peace but ordered his armed forces to prepare for invasion. Hermann Goering assured him that a sustained air assault would destroy the RAF, winning the air superiority needed.
July 1940 saw German planes target shipping in the Channel, drawing the RAF into combat, before radar stations, communications centres and airfields faced round-the-clock bombing in August. The battle reached a climax with attacks on London in September.
Joan 'Elizabeth' Mortimer, Elspeth Henderson and Helen Turner of the WAAF. All three received the Military Medal for courageous conduct during attacks on Biggin Hill airfield. Biggin Hill suffered a total of ten major attacks between 30 Aug and 5 Sept.
A group of pilots of No. 303 (Polish) Squadron RAF return from a sortie. The first Polish squadrons were formed in the summer of 1940. Pilots came from several other countries, including Australia, Canada, Czechoslovakia, New Zealand and the USA.
RAF Duxford was a Sector Station in 12 Group, responsible for defending the Midlands and East Anglia. As the fighting intensified, Duxford's squadrons were called on to support 11 Group's defence of London and the south-east.
Despite incessant attacks, the RAF's defences held. The Luftwaffe could not continue, and in the autumn switched to 'nuisance' raids and night operations. The failure to defeat the RAF convinced Hitler to postpone his invasion plans indefinitely.
Over 600 oil wells were sabotaged by retreating Iraqi forces. Work to put the fires out lasted until November 1991. This photograph was taken by the artist John Keane, who was commissioned as IWM's 'official recorder' in the Gulf War.

Over 600 oil wells were sabotaged by retreating Iraqi forces. Work to put the fires out lasted until November 1991. This photograph was taken by the artist John Keane, who was commissioned as IWM's 'official recorder' in the Gulf War.
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On 2 August 1990 Iraqi dictator Saddam Hussein invaded Kuwait, a tiny oil-producing state in the Persian Gulf.
The response of the international community was swift. The United Nations demanded Iraqi withdrawal, and imposed a trade embargo. A US-led coalition force of nearly one million made up of service personnel from 32 countries, including 53,457 from the United Kingdom, was assembled to expel the Iraqis should diplomacy fail.
The United Nations set a deadline of 15 January 1991 for Iraqi forces to leave Kuwait. This deadline was ignored and the air war began on 17 January with coalition aircraft flying over 100,000 sorties. Land operations started on 24 February and were successfully concluded in just five days.
Coalition forces lost 392 dead, including 47 British soldiers. Iraqi battle deaths were estimated at between 20,000 and 35,000, while over 3,000 civilians were killed in coalition air strikes.
Saddam Hussein remained in power in Iraq and subsequent sanctions left the country economically crippled and internationally isolated.