Commandos have taken part in every war in American history, from the Revolution to today. But it wasn't until World War II that these unconventional units evolved into official, structured parts of the Army. And it was left to President Kennedy to grant them their trademark berets and legitimize the special forces. Narrated by Stacy Keach, THE GREEN BERETS is a thrilling look at these fabled fighters. Explore what is known about their missions in Vietnam fighting behind enemy lines, the true story of their extensive black ops remain top secret. Military historians reveal how World War II units like the Rangers and Merrill's Marauders showed the need for a permanent, specialized force trained to operate with minimal supervision. See footage of the Berets in training and in action, and meet with some of the men who have served with this elite force. From Vietnam to Panama and the Gulf War, this is an up-close look at THE GREEN BERETS.