Book excerpt: The exciting story of the Navy's Underwater Demolition Team—also known as the Frogmen of WWII—who were the precursors to today's Navy SEALs, in their own words. As countless battlefronts in the Pacific, African, and European theaters called for direct amphibious assaults against islands and beachheads, a small corps of exceptionally skilled fighting men was formed—the U.S. Navy underwater warriors. Beginning in 1943, these men undertook never-before-attempted missions ranging from eye-to-eye recon of enemy-held positions to staging the demolition of shoreline obstacles and clearing the way for landing craft. Here, in their own words, are the true stories of these aquatic commandos, whose daring exploits and bravery would pave the way for thousands of American fighting men around the globe—and whose revolutionary training and fighting methods would evolve into the modern special forces known as the Navy SEALs.