[Michal]

One of them was Czechoslovak pilot Augustin Přeučil. As pre-war Czechoslovak military pilot he tried to go to Poland after occupation of rest of Czechoslovakia on March 15 1939, but he was captured by Gestapo and later say OK for collaboration. He managed to escape to Poland once again but this time with Gestapo assistance. He became part of Czechoslovakian exile unit in Poland, them France and finally at Great Britain. He became member of 310. Squadron and defected in 1941 with Spitfire by training flight as member of 55th OTU. His Poland pupil thought he had crashed in sea. But he flew to Belgium where landed nearby some farm. Farmer helped him but Přeučil later told his name to gestapo. Prague Gestapo used him as source of information about Czechoslovakian pilots in Great Britain. Traitor Přeučil was executed in 1947.

I know as well about some Romanian pilots which defected to Germans in 1945 when ARR pilots fought with Allies. Soviet pilots as well many times defected to Germans.