The Pentagon's Chinese Military Power Report 2020 predictably comments on high numbers of Chinese submarines. But as most of the subs are conventional and quality of China's conventional and nuclear subs cannot be assessed or publicized the only safe USN reaction is to build more Virginia-class SSNs more quickly.
See the Report https://media.defense.gov/2020/Sep/01/2002488689/-1/-1/1/2020-DOD-CHINA-MILITARY-POWER-REPORT-FINAL.PDF especially:
- the intro pages i and ii
- the Chinese Navy (PLAN) Chapter, beginning page 44 and
- especially the submarine page 45.
- the Map page 49 detailing Chinese naval command regions and numbers of subs types in each
region is very interesting.
See the Report https://media.defense.gov/2020/Sep/01/2002488689/-1/-1/1/2020-DOD-CHINA-MILITARY-POWER-REPORT-FINAL.PDF especially:
- the intro pages i and ii
- the Chinese Navy (PLAN) Chapter, beginning page 44 and
- especially the submarine page 45.
- the Map page 49 detailing Chinese naval command regions and numbers of subs types in each
region is very interesting.