Following its failure to seize Kashmir in 1947, Pakistan supported numerous 'covert cells' in Kashmir using operatives based in its New Delhi embassy. After its military pact with the United States in the 1950s, it intensively studied guerrilla warfare through engagement with the US military. In 1965, it decided that the conditions were ripe for a successful guerilla war in Kashmir. Code named 'Operation Gibraltar', companies were dispatched into Indian-administered Kashmir, the majority of whose members were "razakars" (volunteers) and "mujahideen" recruited from Pakistan-administered Kashmir and trained by the Army. These irregular forces were supported by officers and men from the paramilitary Northern Light Infantry and Azad Kashmir Rifles as well as commandos from the Special Services Group. About 30,000 infiltrators are estimated to have been dispatched in August 1965 as part of the 'Operation Gibraltar'.