 During this insurgency the left-leaning Bandaranaike government turned to the Soviet Union for more sophisticated weaponry, and received five Mikoyan-Gurevich MiG-17F fighter bombers and a MiG-15 UTI trainer, as well as two Kamov Ka-26 helicopters meant for search and rescue and casualty evacuation.The RAF's heavy transports also flew in six Bell 47G helicopters purchased from the United States, which were put into combat as soon as possible after only five days of pilot training.Air Force personnel joined in ground operations, and when the insurgents surrendered after about a month's fighting the RCyAF was in charge of three of the many rehabilitation camps setup for insurgents.