Military Alliances in the 21st Century: Still Relevant after all These Years?

While military alliances have always been important to the United States, some experts wonder about their future. In today's uncertain security environment, they question whether these alliances may have outlived their usefulness. The author argues that U.S. national security leaders face some difficult choices as they formulate strategy and determine the number and types of collective security arrangements the nation will require to secure its national interests in the future.