Astonishing. If you have some old friends still in, you might want to urge them to defy this order.
I expect that the Catholic Military Archdiocese should explode over this. More than any other denomination, this attacks Roman Catholics. They have the least number of chaplains in the military in ratio to the number of Roman Catholics in the military.
However, it can affect other denominations at different installations in the US and overseas. There is no guarantee, for example, that there is a Baptist chaplain at each installation. If a minister is found acceptable to a denomination’s beliefs, the military regularly allows them to use the facilities on post as a volunteer or on a contract. This enables a commander to provide particular services even in the absence of a chaplain of that denomination.