Polikarpov I-16 type 29 ”White 1”, Botoșani airfield, summer 1941.
The plane was the first intact Soviet fighter captured by Romanian forces during 1941. 
Repainted in Romanian markings, the plane was transferred to Botoșani airfield where Lt. Av. Popescu Ciocănel flew it in mock combat against IAR-39 biplanes of Escadrila de Observație No.19.
This I-16 was destroyed by Sublocotenent Av. Ivanciovici at Iași on 11 September 1941.

(info from the book: Romanian Fighter Colours 1941-1945, page 182)

Romanian Polikarpov I-16

Romanian soldier guarding German LW trucks. Bucarest, 1941.

Romania 1941

In March 1943, the 6th Bomber Group began training with the newly arrived Ju-88A4s. By June it was declared ready for action and moved to the front with its 25 bombers. The first mission took place on 18 June, but the first losses occurred on 22. Things got worse and after one month of combat the group had lost 8 airplanes and another 6 were under repairs.

Some of the pilots and the remaining airplanes were transferred to the elite 5th Bomber Group, which was also converting to the Ju-88A4. By 10 August their training was complete. The first missions of the 5th Bomber Group on the new airplanes was on 15 August. The group continued to operate on the front throughout 1943 and 1944 and the losses were replaced by the Germans. They also claimed some sixteen VVS fighters shot down, the first of which was on 20 September against two Airacobras.

The events of 23 August 1944 caught them by surprise. Only one Ju-88A4 squadron (the 77th) could be raised for the new anti-Axis campaign. Because of the severe losses and maintenance problems, the remaining five Ju-88A4s were joined with the Ju-88D1s of the 2nd Long Range Recon Squadron in October. They operated together until the end of the war, on 12 May 1945. (http://www.worldwar2.ro/arr/?article=756)

Photo source: Romanian Aeronautics in the Second World War 1941-1945”, Modelism Int. by Cristian Craciunoiu and Jean-Luis Roba, ISBN 973-8101-18-2;