re: Are there foreign militaries in the United States?

Countless countries send their soldiers here for training. When I was at the U.S. Armor School at Ft. Knox you'd see uniforms from numerous countries. In fact, I remember when the M1A2 was first being fielded in the mid 90's, the first time I saw them going out into the field at Ft. Knox, they were crewed by tankers from Saudi Arabia.