Ukrainian Air Force

Ukrainian engineers at the Yuzhnoye Design Bureau presented the anti-ship supersonic missile "Lightning", which, according to its creators, is almost "impossible to bring down," according to Russian news agency Izvestia.

Leading Turkish developer of unmanned aerial vehicles Baykar has delivered another batch of drones Bayraktar TB2 in Ukraine.

Three aircraft, ammunition, simulator, camera systems and ground data terminals were delivered to the Ukrainian Air Force.

The newly delivered drones are being tested at an air base in Starokostiantyniv in Western Ukraine, Sabah reported.

More accusations, still no investigation

MOSCOW -- The Russian military has said that a Ukrainian SU-25 warplane was flying in the vicinity of a Malaysia Airlines aircraft shortly before it crashed in Ukraine.

The Russian Defense Ministry claims that "Kiev must explain why a military plane was following a passenger flight."

“...and once the TAR (Target Acquisition Radar) has lock-on, this light will go green. Then just push this button here, and the rest’s automatic. Good luck!  Oh, and make sure nobody’s standing behind the missile when you launch.”

The Ukrainian forces started an operation against the separatists in Slaviansk early Friday morning, Ukrainian and Russian media report. 

Ukrainian Air Force combat helicopters are in the sky above the east Ukrainian city of Slaviansk, the city is fully blocked, fighting is underway, a representative of the militia told ITAR-TASS by phone on Friday.