It seems that USA will have a full schedule with friendly matches.

They will play Poland on the 1st of March in Kaiserslautern, in Germany, on the Fritz-Walter-Stadion. This is the same stadium they will play their second group match against Italy, on the 17th of June.

USA previously played Poland in 2002 group matches of the World Cup and lost 3-1.

The other game will be against Germany, on the 22nd of May, at Dortmund.

Source: ESPNsoccernet