Share This Article 1. The Big Three Allied leaders of World War Two first met all together at this city. Casablanca Quebec Yalta Tehran 2. In 1880 he was the richest man in America. William Vanderbilt John Rockefeller John J. Astor Jay Gould 3. During Vietnam, Military Occupational Specialty 94B was this. Food service specialist Parachute packer Truck driver Military police Loading …