Summary

On April 4, 1949, twelve nations signed the North Atlantic Treaty: the United States, Canada, Iceland, the United Kingdom, Belgium, the Netherlands, Luxembourg, France, Portugal, Italy, Norway, and Denmark. For the United States, the North Atlantic Treaty signaled a major shift in foreign policy. Gone was the traditional aversion to “entangling alliances,” dating back to George Washington’s farewell address. The United States had entered into a collective security arrangement designed to preserve peace in Europe.

With the creation of the North Atlantic Treaty Organization (NATO), the United States took on a clear leadership role on the European continent. Allied defense depended on US military power, most notably the nuclear umbrella. Reliance on the United States unsurprisingly created problems. Doubts about the strength of the transatlantic partnership and rumors of a NATO in shambles were (and are) commonplace, as were anxieties about the West’s strength in comparison to NATO’s Eastern counterpart, the Warsaw Pact. NATO, it turned out, was more than a Cold War institution. After the fall of the Berlin Wall and the collapse of the Soviet Union, the Alliance remained vital to US foreign policy objectives. The only invocation of Article V, the North Atlantic Treaty’s collective defense clause, came in the wake of the September 11, 2001 terrorist attacks. Over the last seven decades, NATO has symbolized both US power and its challenges.