In May or June 2024, commercial satellite imagery showed unusual heavy crane barges and pollution-containment booms at the Wuchang Shipyard in Wuhan, China — assets typically used for major salvage operations. By September 2024, senior U.S. defense officials had confirmed anonymously to Western news organizations that China’s newest attack submarine — the first of a new class designated by Western analysts as the Zhou-class or Type 041 — had sun…