During the campaign the Canadian air contingent consisted of 18 CF-18 Hornet aircraft from 441 and 425 Tactical Fighter Squadrons, with 69 aircrew and 250 ground crew. Between March 24 and June 10, 1999, they flew 684 sorties in 224 missions, and dropped nearly of gravity and precision-guided bombs. Despite the fact that they comprised less than 2% of the nearly 1,000 Allied aircraft engaged in the conflict, they flew on 10% of all bombing missions.