The Defence Select Committee is one of the Select Committees of the British House of Commons, having been established in 1979. It oversees the operations of the Ministry of Defence and its associated public bodies, including the armed forces.
From June 2010 chairs of select committees have been directly elected by a secret ballot of the whole House of Commons using the alternative vote system. Candidates with the fewest votes are eliminated and their votes redistributed until one remaining candidate has more than half of valid votes. Elections are held at the beginning of a parliament or in the event of a vacancy.