In this image provided by the U.S. Navy, a Sea Hunter, a crewless vessel, arrives at Pearl Harbor, Hawaii, to participate in the Rim of Pacific (RIMPAC) 2022, on June 29, 2022. The Navy is expediting development of drone ships aimed at expanding the reach of offensive firepower while keeping sailors on traditional warships farther from harm's way. (U.S. Navy photo by Mass Communication Specialist 2nd Class Aiko Bongolan, via AP)

In this image provided by the U.S. Navy, a Sea Hunter, a crewless vessel, arrives at Pearl Harbor, Hawaii, to participate in the Rim of Pacific (RIMPAC) 2022, on June 29, 2022. The Navy is expediting development of drone ships aimed at expanding the reach of offensive firepower while keeping sailors on traditional warships farther from harm’s way. (U.S. Navy photo by Mass Communication Specialist 2nd Class Aiko Bongolan, via AP)