As the United States seeks to defeat terrorism in the twenty-first century, we might remember our twentieth century struggle with the forces of Soviet communism. We’ve almost forgotten the terror of the nearly half century Cold War with the Soviet Union. The world came perilously close to nuclear catastrophe.

American citizens built bomb shelters and wondered if their children would have a future. Christians feared the Soviet Union’s embrace of atheism.

Yet the catastrophe was avoided, and the Soviet Union collapsed. John Lewis Gaddis has written a marvelous book about George F. Kennan, a U.S. diplomat and Russian expert during those times (George F. Kennan, An American Life).

The book, which won the 2012 Pulitzer Prize for biography, brings alive those times of fear bordering on hysteria. It hints of policies which might serve us in our current conflict.

Kennan was not always right, but he usually was. He cautioned against being drawn into war when American interests are not directly affected. He recognized the limits of our resources and believed we should husband them with care.

Our best defense, Kennan believed, was to become a strong nation morally and economically. He worried that the public often undermined its best interests by yielding to excessive emotionalism in dealing with complex issues instead of taking the time to understand them.

We cannot, he believed, right all wrongs, but rather “distinguish lesser from greater evils.” We should strive to be true to our ideals and in that way be an example that others might aspire to.

Aren’t Kennan’s concepts valid in today’s struggle with terrorists?