On 1 April 1941, the 1941 Iraqi coup d'état had taken place and Iraq had come under the control of Iraqi nationalists led by Rashid Ali, who appealed for Italian and German support. The Anglo-Iraqi War (2–31 May 1941) led to the overthrow of the Ali regime and the installation of a pro-British government. During this conflict, key Vichy figure Admiral François Darlan had allowed German aircraft to use Vichy airfields in Syria for attacks against the British in Iraq. The British invaded Syria and Lebanon in June, to prevent Nazi Germany from using the Vichy French-controlled Syrian Republic and French Lebanon as bases for attacks on Egypt, during an invasion scare in the aftermath of the German victories in the Battle of Greece (6–30 April 1941) and the Battle of Crete (20 May – 1 June). In the Western Desert Campaign (1940–1943) in North Africa, the British were preparing Operation Battleaxe to relieve the Siege of Tobruk and were fighting the East African Campaign (10 June 1940 – 27 November 1941) in Ethiopia and Eritrea.