In the Western Pacific, both Australia and Japan could see an increase in American flattops crowding their ports in a time of heightened tensions. The thing is, likely opponents in the region who carriers and LHD/LHAs would be arrayed against field well-trained and likely very dedicated frogman forces who can use some decidedly old-school methods to keep such vessels sidelined.
So how do you train for that?
Well, Clearance Divers from the Royal Australian Navy and the Japan Maritime Self-Defense Force recently conducted a combined training activity, involving the clearance and removal of limpet mines, on the USS Midway Museum Ship in San Diego, California during the current Rim of the Pacific (RIMPAC) 2022 exercises. Ex-USS Midway (CVB/CVA/CV-41) provides a great static training installation as the 1,000-foot long, 65,000-ton warship is the only supercarrier in the world that is preserved as a museum.
Now that makes a lot of sense.