During WWII, Guam was attacked and invaded by Japan 1941, shortly after the attack on Pearl Harbor. The United States returned and fought the Battle of Guam from July 21 to August 10, 1944, to recapture the island from Japanese military occupation. More than 18,000 Japanese were killed as only 485 surrendered. The United States also captured and occupied the nearby Northern Marianas Islands.

Worn black crackle Zippo with different engravings and painted places of action on both sides: «Manila», «Guam» and «Tokyo».