As France's defeat was obviously inevitable, Italy entered the war on 10 June 1940, fulfilling its obligations towards the Pact of Steel. Mussolini hoped to quickly capture Savoy, Nice, Corsica, and the African colonies of Tunisia and Algeria from the French, but Germany signed an armistice (22 June: Second Armistice at Compiègne) with Marshal Philippe Pétain establishing Vichy France, that retained control over southern France and colonies. This decision angered the Fascist regime. In summer 1940, Mussolini ordered the bombing of Mandatory Palestine and the conquest of British Somaliland. In September, he ordered the invasion of Egypt; despite initial success, Italian forces were soon driven back by the British (see Operation Compass). Hitler had to intervene with the sending of the Afrika Korps of General Erwin Rommel, that was the mainstay in the North African campaign.