Messerschmitt Bf.110 in service with Croatia, Hungary and the USSR

 

The Messerschmitt Bf.110 was a German twin-engined heavy fighter of the Second World War that was employed by various countries, among them, the following ones:

• Independent State of Croatia: Very late in the war, in February 1945, two Bf.110G-4 night fighters were supplied to the Independent State of Croatia's Air Force (ZNDH for short). One of them was destroyed during an Allied bombing in Zagreb, while the another retreated to Klagenfurt, Austria, fleeing from the advance of Yugoslav partisans and the Soviet Army. Its fate is unknown.
• Hungary: The Royal Hungarian Air Force (MKHL for short) was supplied with approximately twelve Bf.110G-4 night fighters in December 1944 (although some sources claim there were up to fourteen). 
  They were assigned to the 101. Night Fighter Squadron, with plans set to fund a second one. In fact, pilots were trained for this second unit, but never received the required aircraft. 
  The 101 was initially based in western Hungary but given the quick advance of the Soviet Army, they were soon rebased to Vienna and Parndorf. In the period ranging from January to March 1945 they saw barely any action at all flying some unfruitful sorties. In early April 1945 their aircraft were blown up on ground to prevent their capture as they could not fly due to the lack of fuel. After that, the crews moved to  southern Germany to surrender to American troops and avoid being taken prisoners by the Soviets.
• USSR: The Soviet Air Force (VVS) bought a single Bf.110C in autumn 1940 for evaluation purposes. It was tested by the Aeronautical Institute of the VVS and served as the main inspiration for the Petlyakov Pe-3.

Sources:
1st https://en.wikipedia.org/wiki/Messerschmitt_Bf_110_operational_history
2nd https://falkeeins.blogspot.com/2015/06/hungarian-bf-110-g-4-101-night-fighter.html
3rd Hikoki Publications - The Croatian Air Force

4th Schiffer Publications -  German Aircraft in Russian and Soviet Service 1914-1951 Volume I