Vice President JD Vance, the first Marine in history to serve as second-in-command, gave a fiery speech at Camp Pendleton in California on Saturday to help celebrate the Marine Corps anniversary. (Credit: POOL) Vice President JD Vance, the first Marine in history to serve as second-in-command, gave a fiery speech at Camp Pendleton in California on Saturday to help celebrate the Marine Corps anniversary. (Credit: POOL)