Ellen Tauscher, right, the U.S. Undersecretary of State for arms control and international security, and Polish defense minister, Bogdan Klich greet each other before signing a deal to regulate the stationing of American troops and military equipment in Poland, in Warsaw, Poland, on Friday Dec. 11, 2009. The step is a prerequisite for deploying U.S. Patriot missiles to Poland next year. It would also serve as the legal framework for a possible future missile defense site.
(AP Photo/Czarek Sokolowski)