The U.S. Navy is facing challenges in building a fleet of unmanned vessels due to a focus on big shipbuilding projects, despite the demonstrated effectiveness of sea drones in combat situations. The Pentagon is now incorporating lessons from Ukraine and the Red Sea to counter China’s naval power in the Pacific, launching the Replicator initiative to deploy small air and sea drones. This initiative aims to match China’s military threat and is funded by reallocating funds from the existing Pentagon budget. The use of sea drones for maritime surveillance, minehunting, and protection of critical infrastructure is seen as crucial, with the U.S. Navy testing unmanned vessels in combat scenarios and expanding their use in different regions. Companies like Saildrone and Ocean Aero are actively involved in supplying autonomous vessels to the Navy, showing the increasing focus on deploying sea drones quickly to stay ahead in naval warfare.