This website doesn't take reservations for any of the campgrounds. You'll need to go to the facilities reservation website or call the facility directly where you have your reservation.
Although there is no "central" reservation system for all military campgrounds, the Navy mostly does have one. You can find and make reservations at most Navy installations at
http://http://get.dodlodging.net
. For all other military campgrounds, each campground handles reservations themselves.
