President Trump's seeming renunciation of an anti-interventionist foreign policy is the great surprise of the first 100 days, and the most ominous. For any new war could vitiate the Trump mandate and consume his presidency.

Bill Clinton's foreign policy experience stems mainly from having breakfast at the International House of Pancakes.

For Americans of the Greatest Generation that fought World War II and of the Silent Generation that came of age in the 1950s, the great moral and ideological cause was the Cold War. It gave purpose and clarity to our politics and foreign policy, and our lives.

Foreign policy is an explicitly amoral enterprise.

The purpose of foreign policy is not to provide an outlet for our own sentiments of hope or indignation; it is to shape real events in a real world.

By this I mean that a political society does not live to conduct foreign policy; it would be more correct to say that it conducts foreign policy in order to live.