After suffering heavy losses in aircraft and air force personnel during its campaign against Islamist forces in eastern Libya throughout 2016 and 2017, Haftar's pro-LNA Libyan air force received several MiG-23MLD fighter jets from Russia in February 2017, as well as eight former Egyptian Air Force MiG-21MF fighter jets and at least 10 Mi-8T helicopters from Egypt (in addition to earlier deliveries of dozens of MiG-21MF fighter jets and Mi-8T and Mi-24 helicopters from UAE and Egypt during 2014 and 2015). Egypt and the UAE also provided spare parts, engineers and technicians to the pro-LNA air force, and Egypt provided extensive training of new pro-LNA fighter pilots, as well as reconstruction and modernization of pro-LNA Libyan air force bases. Pakistan also provided training of new pro-LNA fighter pilots between 2015 and 2017. The military support of Egypt and the United Arab Emirates to Haftar's pro-LNA forces went even further than the supply of weapons and other military equipment, as both the Egyptian air force and the United Arab Emirates air force conducted multiple airstrikes on both pro-GNA forces and Islamist positions through eastern Libya between 2015 and 2017.