A Danish soldier who volunteered to fight alongside the Ukrainian armed forces has made unverified claims that Ukrainian soldiers have been executing Russian prisoners of war. The Dane, who uses the pseudonym Jonas, has alleged that Ukrainian soldiers have killed Russian prisoners of war during the war, saying: “I have heard of one successful prisoner exchange, and that’s it,” and adding: “People are being killed.” Said to be a marksman, Jonas travelled to Ukraine to volunteer to fight alongside the Ukrainian armed forces and told state-owned Danish broadcaster TV2 he has also killed Russian soldiers — but never any captured...