The Egyptian Army Air Service was formed in 1932, and became an independent air force in 1937. It had little involvement in the Second World War. From 1948 to 1973 it took part in four separate wars with Israel, as well as the quasi-War of Attrition. It also supported the Egyptian Army during the North Yemen Civil War and the Libyan–Egyptian War of 1977. From 1977 to 2011 it saw virtually no combat, but has participated in numerous exercises, including Operation Bright Star. Since 1992 the EAF has also provided aviation support for the police and other national security organizations engaged in the war against terrorism. In recent years the Air Force has acted in the Sinai insurgency, the Second Libyan Civil War and the Intervention in the Yemen.