. >> the brain child of a 22-year-old talent the cartoonist, frank iafrate. his first drawing was of a beaver but he found out it turns tail and run. then he thought of the busy bee, a hammer, a wrench, of course, a tommy gun for when he fights. the first seabees completed recruit training at camps perry and allen in virginia. three more facilities were soon established. davisville, rhode island, gulfport, mississippi, and port hueneme, california. >> the basic mission thought world war ii was to build advanced bases. >> anything west of pearl harbor was an advanced base? >> yes. and anything east of florida was an advanced base. they were building barracks, hospitals, all that kind of thing for any branch of the service who needed it. >> they would build more than 400 advanced bases as they traveled the five roads to victory. >> they're imaginary roads. it kind of shows the path that the u.s. military took during world war ii to fight their enemy. those that left from the east early went the north atlantic route and some went the southern atlantic route. fro