It's possible, true is a whole 'nother question.
Young Soviet soldiers captured by the muj occasionally converted to save their butts from death (Slow or fast, depending on who captured you, but death either way). Some very ugly things are rumored to have happened involving wealthy Arabs 'Touristing' in to pay for the privilege of beheading a captured infidel, back then.
To corrupt an old Brit forces recuiting slogan, 'it's a man's life in the Army, but nobody said it would be a long or pleasant one'.