 In November 1919, the British began the fifth expedition.In 1920, a combined land and air offensive defeated the Dervish army and occupied the capital, using the Somaliland Camel Corps, the 12 aircraft of Z Force Royal Air Force, Somalia Police, elements from the 2nd (Nyasaland) Battalion and 6th (British Somalia) Battalion of the King's African Rifles (KAR) and an Indian battalion.During the Interwar years, the SCC was re-organised, better to defend the protectorate in the event of war.