U.S.-UK relations at the start of the 21st century

Although there is widespread agreement that the United States is the world's most powerful country in military, economic, and diplomatic terms, and is likely to remain so for the foreseeable future, there is little agreement as to how the rest of the world will react to America's lead. Theory has an even more difficult time explaining the relationship between the United States and the United Kingdom (UK), especially its remarkable endurance over the past 6 decades. The U.S.-UK partnership flourished during World War II, deepened during the long twilight struggle with the Soviet Union, and has prospered further since the end of the Cold War. It is likely to survive any new challenges that may loom on the horizon.