Given the question: Information: - The Royal Air Force (RAF) is the United Kingdom's aerial warfare force. Formed towards the end of the First World War on 1 April 1918, it is the oldest independent air force in the world. Following victory over the Central Powers in 1918 the RAF emerged as, at the time, the largest air force in the world. Since its formation, the RAF has taken a significant role in British military history, in particular, playing a large part in the Second World War where it fought its most famous campaign, the Battle of Britain. - Squadron leader (Sqn Ldr in the RAF and PAF; SQNLDR in the RAAF and RNZAF; formerly sometimes S/L in all services) is a commissioned rank in the Royal Air Force and the air forces of many countries which have historical British influence. It is also sometimes used as the English translation of an equivalent rank in countries which have a non-English air force-specific rank structure. - Squadron Leader John Dering Nettleton VC ( 28 June 1917 -- 13 July 1943 ) was a South African recipient of the Victoria Cross , the highest and most prestigious award for gallantry in the face of the enemy that can be awarded to British and Commonwealth forces . Given the information above, choose from the list below the object entity that exhibits the relation 'military branch' with the subject 'john dering nettleton'. Choices: - royal air force - squadron
The answer is:
royal air force