Hi Sean. Quite a number of military atheists have joined this friendly meeting place where freethinking atheists recognise that religion is a huge fraud used to control vulnerable superstitious people and especially defenceless children;
how tragic and inexcusable it is that women and minorities have been oppressed these last two thousand years and even longer.
founder of the busy group "ORIGINS: Universe, Life, Earth, Humans, Religion, Evolution, Darwin..." with its 280 discussion topics. We invite you to join us. http://www.atheistnexus.org/group/originsuniverselifehumankindanddarwin
A military atheist thread there that could interest you is called "Onward christian soldiers"---largely about difficulties that some soldiers experience in the army.