The Malaysian air forces trace their lineage to the Malayan Auxiliary Air Force formations of the Royal Air Force (RAF) formed in 1934. They later transformed into the Straits Settlements Volunteer Air Force (SSVAF) and the Malaya Volunteer Air Force (MVAF) formed in 1940 and dissolved in 1942 during the height of the Japanese advance over Malaya. The latter was re-established in 1950 in time for the Malayan Emergency and contributed very much to the war effort.