In 1940, Nazi Germany overran France. Britain looked to be the next target. President Franklin Roosevelt knew he had to prepare America for war. But how? Arthur Herman, senior fellow at the Hudson Institute and author of Freedom's Forge, tells the amazing story.

This video is part of the American Presidents 5-Minute Video Series.
Once you've seen them all, take our Presidents Quiz.

Get "The Honest Book of Presidents" on Amazon.