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America at 250

To mark the 250th anniversary of the U.S. declaration of independence, CFR is dedicating a year-long series of articles, videos, podcasts, events, and special projects that will reflect on two and a half centuries of U.S. foreign policy. Featuring bipartisan voices and expert contributors, the series explores the evolution of America’s role in the world and the strategic challenges that lie ahead.

<p>The United Nations flag flies outside UN Headquarters in New York City; U.S. soldiers conduct a search and clear operation near Nui Ba Den, Vietnam, August 21, 1970. </p>

The Best and Worst Foreign Policy Decisions in U.S. History

A new CFR survey of historians examines which decisions have left the greatest legacies, for better or worse.

See the Rankings