The call went out for munitions probably in the spring of 2022, if I remember correctly. In the course of the last year and change, much work has been done between the Department of Defense and its prime suppliers in the ammunition industrial base to attempt to find all of what I would call the bottlenecks. These are usually workforce and long-lead items, individual components of the munition that are hard to find or hard to produce. A lot of dedicated work went into finding second sources of supply for those long-lead items and getting the production facilities open and scaled up.
On October 24th, 2023. See this statement in context.