ISTANBUL (Reuters) -Russia has complained to Turkey over its sale of Bayraktar TB2 armed drones to Ukraine, a high level Turkish bureaucrat said on Friday, but added the sales were by a private Turkish company and not state-to-state deals. Russian President Vladimir Putin sent his troops into Ukraine on Feb. 24 on what he called a “special military operation” to demilitarise and “denazify” Ukraine. Kyiv and the West say Putin launched an unprovoked war of aggression. “Russians are upset and from time to time they are complaining about the drone sales. They used to complain and they are complai…