In 1940, a year before the attack on Pearl Harbor, the U.S. Navy began to think about what a war with Germany would look like. The admirals worried in particular about the Kriegsmarine’s fleet of U-boats, which were preying on Allied shipping and proving impossible to find, much less sink. Stymied, Secretary of the Navy Frank Knox turned to Booz, Fry, Allen & Hamilton, a consulting firm in Chicago whose best-known clients were Goodyear Tire & Rubber (GT) and Montgomery Ward.
via Booz Allen, the World’s Most Profitable Spy Organization – Businessweek.