belgrade russia elite aerobatic team zoom serbia military airport friday belgrade exhibit new fighter jet display demonstrate close tie fellow slavic orthodox christian countries serbia seek balance ambition join european union continue warm relations russia back belgrade ultimately fail effort prevent ex-province kosovo secede declare independence russian defense minister sergei shoigu attend friday air show stag commemorate liberation belgrade nazi germany soviet red army yugoslav communist partisans 1944. five six mig-29s donate serbia russia 2016 serbia 10 migs date 1987 paint new grey camouflage park runway batajnica military base outside belgrade occasion dear mr shoigu thank wonderful present thank people russia president vladimir putin serbian president aleksandar vucic tell shoigu russian hope cooperation even good russia aerobatic team swifts demonstrate fly skills serbian jet air mobile infantry carry mock air security operation assault grind target serbia join nato partnership peace program pursue membership alliance remain deeply unpopular among serbs 1999 air war stop then-nationalist president slobodan milosevic campaign crush kosovo uprise kill expel ethnic albanians last year belgrade sign deal airbus buy nine h145m light helicopters weapon pod use military police serbia 2014 open accession talk eu remain attach friendship russia ally example block independent kosovo become member unite nations belgrade request russian aerobatics team join serbian display air power