Currently the only trackable military asset in action over the Ukrainian theater is a USAF Northrop Grumman RQ-4B (reg. 09-2039, callsign FORTE12) in flight over the Black Sea.
No other trackable traffic (civil or military) is present within Ukrainian airspace.
It is possible that there is also a NATO Northrop Grumman RQ-4D that took off from Sigonella last night.