 In total, more than 2,300 U.S. troops stationed at Pearl Harbor lost their lives during the attack, which led to the United States' entry into the Second World War. Salute the troops honors the ultimate sacrifice of U.S. Navy Storekeeper First Class Harry E. Walker. For if not for Walker's commitment to serve, if not for his courage on December 7, 1941, this nation could not, this nation would never have remained free.