China Russia Navy Drills

China, Russia, and Iran pose regional and strategic submarine threats and are building up undersea warfare capabilities as the Navy is cutting its submarine force by 30 percent, the admiral in charge of Pentagon submarine programs told Congress on Thursday.

Rear Adm. Richard Breckenridge, director of Navy undersea warfare programs, said the decline of U.S. submarines is placing a key U.S. military advantage at risk.

“Our adversaries are not standing still, and so even though we have an advantage and we have a lead, we can’t sit on our lead,” Breckenridge told a hearing of the House Armed Services seapower subcommittee.