1) Read Studs Terkel's "The Good War", its a collection of oral histories from World War Two. An incredible document that gives you more insight into the mind of men and women who were there than you will ever gain without being there.
2) Watch, or rewatch "Dr. Strangelove. For those who have never seen it, its a 1964 indictment of the Cold War mentality by Stanley Kubrick and a cast that includes James Earl Jones in his first movie role. This is an incredible piece of satire that works even forty years later. There are parallels to today's world view in it.