US Navy - 40 percent of attack subs out of commission for repairs

Unexpected delays at major naval shipyards brought about by supply-chain problems and not enough employees have put almost 40% of Navy attack submarines out of commission, per a July 6 report received from the Congressional Research Service.
Typically, the Navy prefers that approximately 20% of its subs be in depot maintenance at any time, per the report. Eighteen of 49 nuclear-powered attack subs belonging to the Navy are classified as awaiting care or in depot maintenance, leaving the US at a disadvantage against China’s more extensive fleet.