redefect

They may defect and become a part of the opposition and decide later to redefect.

CNN Transcript Dec 4, 2001 2001

And if you sought to redefect, to return to the causes of Britain or the United States or wherever it was, chances were that you would either be liquidated, as was Kravitsky around the corner here, or your employers would be informed about your activities during the last 10, 20 or 30 years or whatever it was, which could often lead or could quite easily lead to jail sentences and things of that description.

Treason in the Blood: H. St. John Philby, Kim Philby, and the Spy Case of the Century 1995

So he found himself absolutely abandoned in Rome and he made, I would say, a mortal decision to redefect, because it was unthinkable for the KGB to return back to the Soviet Union and to be safe.

Washington Station: My Life as a KGB Spy in America 1995