US aerospace major Boeing in May, 2019 handed over first of the 22 Apache Guardian attack helicopters to the Indian Air Force (IAF) at its production facility in Mesa, Arizona, on 10 May 2019. The AH-64E Apache is a leading multi-role attack helicopter and is flown by the US Army. The IAF had signed a multibillion dollar contract with the US government and Boeing Ltd in September, 2015 for 22 Apache helicopters.