The USA beat Mexico in extra time two years ago to clinch the title and will have a rematch with their rivals in the semi-finals. The winners will face Panama or Canada in the championship match.
Arsenal striker Folarin Balogun, who gave US Soccer a boost last month when he opted to represent the United States instead of England, has earned his first call-up.
Also in the mix are midfielders Weston McKennie and Brenden Aaronson, both of Leeds United and Arsenal's Matt Turner, who was the first-choice goalkeeper at the World Cup.
The training camp starts on June 4th, just days after Anthony Hudson stepped down as interim manager of the US team, with assistant BJ Callaghan assuming the interim role.
The coaching shuffle comes on the heels of a dispute between former US coach Gregg Berhalter, US midfielder Gio Reyna and his parents. Reyna was named in the training squad on Thursday.
"In addition to having big-game experience and top-level talent, what’s great about this group overall is the familiarity and understanding that’s been built together these last four years about our style and our culture," Callaghan said in a statement.
