Over the past 25 years, the relationship between the United States and Poland has been close and cooperative. The United States strongly supported Poland’s accession to the North Atlantic Treaty Organization (NATO) in 1999 and backed its entry into the European Union (EU) in 2004. In recent years, Poland has made significant contributions to U.S.- and NATO-led military operations in Iraq and Afghanistan, and Poland and the United States continue working together on issues such as democracy promotion, counterterrorism, and improving NATO capabilities. Given its role as a close U.S. ally and partner, developments in Poland and its relations with the United States are of continuing interest to the U.S. Congress. This book provides an overview and assessment of some of the main dimensions of these topics.