All of the armed services encountered recruitment challenges this year, which service leaders attributed to factors including more thorough medical screenings, fewer Americans eligible to serve, and low civilian unemployment. Meanwhile, the Navy is bracing for even more significant recruitment difficulties in the coming year.

https://www.marinecorpstimes.com/news/your-marine-corps/2022/09/28/will-the-marines-be-the-only-branch-to-reach-2022-recruitment-numbers/