Booklet promoting Yokosuka, Japan, with photos and information on history, industries, city administration, cultural activities, Sister City and Sister Port programs, places of interests, Japanese cooking and restaurants, and accommodations. U.S. Fleet Activities Yokosuka, is a U.S. Navy base in Yokosuka. Five of these were donated by Rear Admiral Kataru Hasegawa on the occasion of his goodwill visit in 1995. The Japan Maritime Self-Defense Force is based in Yokosuka and occasionally visits the Port of San Diego.