How many matches have been played by the U.S. mens national soccer team in the stadium that hosted the 2011 Military Bowl? 
2011 Military Bowl: The 2011 Military Bowl Presented by Northrop Grumman, the fourth edition of the game, was a post-season American college football bowl game, held on December 28, 2011 at Robert F. Kennedy Memorial Stadium in Washington, D.C. as part of the 2011–12 NCAA bowl season.
i don't know