David Greene talks with veteran journalist Marvin Kalb, who examines how those decisions are made in his book The Road to War: Presidential Commitments Honored and Betrayed. And I'm David Greene.

“Flashpoint Vietnam: The Road to War” is a close look at the early days of the only conflict where we won all the battles but still lost the war.

WALTER MILLIS was just old enough to get into uniform before the World War ended and, of course, only knew the Spanish-American War as something that had happened before he was born and about ...