A year into President Trump’s term, what can we say about the Trump Doctrine? As a candidate, Trump promised dramatic changes for American foreign policy. As president, many would agree he has delivered on that promise. In just one year, Trump withdrew from the Trans‐​Pacific Partnership trade deal and the Paris climate treaty, launched cruise missiles at Syria for using chemical weapons, increased American arms sales abroad, refused to certify Iran’s compliance with the Joint Comprehensive Plan of Action, increased the number of American forces operating in the Middle East and Afghanistan, and rattled sabers on the Korean peninsula. How do these changes square with Trump’s call for an “America First” foreign policy? How does Trump’s operating style differ from that of previous presidents? Is America safer today than it was a year ago? From the Cato Conference: The Trump Doctrine at One Year