Turn coat

They couldn't believe Indian soldiers who'd eaten the King's salt and been proud to serve in the army generation after generation could be suborned like that, buy their way out of prison camp by turning coat, come armed hand in hand with the Japs to fight their own countrymen, fight the very officers who had trained them, cared for them and earned their respect.

He resigned, recused himself, sidestepped, and turned coat more than anyone else of his time; in seventeenth-century New England terms, it was as if, through the years of captivity, he had played both Moses and Pharoah's adviser.

Was this the price demanded of Kit for turning coat?

That was why he knew in his mind she was a turn coat.

Because of this and various other reasons, the early soldiers and generals at Fort Pitt considered him a “turn coat” and renegade traitor of the Americans.

We spoiled an attack on members of our team and reduced the number of turn coats by fourteen.