Convincing an American general that he is sincere , when the United States enters the war , he joins the American Air Service .
Later , the now veteran pilots he had befriended come to the bar and Walker realizes he still wants to redeem himself .
Convincing an American general that Walker is sincere , when the United States enters the war , Walker joins the American Air Service .
Later , the now veteran pilots he had befriended come to the bar and Walker realizes he still wants to redeem himself .