sentences:  In the late 1930s was created the international airport Petrella with a huge enlargement of the port of Mogadishu.In 1941, British forces invaded and occupied Mogadishu and Italian Somaliland at large as part of the East African Campaign of World War II.The Somali Youth League formed in 1943 succeeded in uniting all Somali clans under its flag and led the country on the road to independence by drawing inspiration from the early 20th century Somali nationalist; Mohammed Abdullah Hassan and his Dervish Dream, as well as invoking the history of the medieval Somali empires and Kingdoms.