A Russian general says a deal for the United States to put a missile defense battery in Poland "cannot go unpunished."

Gen. Anatoly Nogovitsyn, deputy chief of the Russian general staff, did not give specifics on who was to be punished or how. But Russia has previously said it could aim missiles at any sites where elements of the U.S. missile defense system are deployed in Europe.

Poland and the United States struck a deal on Thursday that will see a missile defense battery in the ex-communist state and deepen military ties.

Nogovitsyn told reporters Friday that the U.S. is exacerbating relations with Russia that are already tense because of fighting between Georgian and Russian forces.