It was in 2010, when General Lloyd Austin was head of U.S. Forces in Iraq, that he got to know then-Vice President Biden. Austin had already become friendly with Biden’s son Beau (they regularly attended Catholic services together in Iraq, where Beau Biden was also deployed, according to the Washington Post), but it was his unflappability in person that most impressed the vice president, according to a senior Pentagon official with contacts in the Biden transition team.