Russia's air force has struggled in combat over Ukraine It entered the war lacking fully trained pilots and used the ones it has poorly, a British think tank says. Advertisement The Russian air force lacks fully trained pilots and has made poor use of the few good pilots that it has, according to a report by the Royal United Services Institute, a British think tank. "Ukrainian assessments concluded that given limited flight hours and the practice of training being delivered in units, the VKS entered the conflict with fewer than 100 fully trained and current pilots," the report said, referring...