China Expands Undersea Mapping Across Strategic Waters

A Reuters investigative report shows China is deploying research vessels and underwater sensors across the Pacific, Indian, and Arctic oceans to collect detailed ocean data.
Published: 3/24/2026, 11:59:22 PM EDT

A Reuters investigative report shows that China is deploying research vessels and underwater sensors across the Pacific, Indian, and Arctic oceans to collect detailed ocean data. U.S. officials and naval experts say this information could provide a strategic advantage in submarine operations amid rising tensions with Washington.