I believe the Pope had about 2 divisions until the 1970s. Now the Swiss Guard is all that remains and there are less than 200 of them. I have no complaints about the Pope using his own military to accomplish something he railed against recently.
We have some Vatican guard in Arizona protecting their telescope. If you hike in the area they point their guns at you. If they would only do that for the threatened churches around the Islamic-infested world.