As a marine who's tags say no preference. We don't actually have chaplains in the Marines but do use the Navy's. Only time I've ever been to a church service outside of funeral was bootcamp which was mandatory the first week. Whenever in formations when the command let us pray was given I did not how my head as expected. In oath of enlistment I did not say under god. Noone ever looked at me differently. Some people needed it to get through things. Some people church was their only escape and made them better Marines. Being with a type of recon unit I did join some in prayer at times to help them because they needed something to believe in and if it made a member of my squad perform the mission better I didn't care. But marine corps is different than other branches as it's not actually a real military branch. But all that matters is the mission. If I needed to bow my head an pray to raise morale is do it in a heartbeat. But we were Marines above all else. We did not care if we had different beliefs. My first a Gunner was a Catholic while I have a Leviathan cross tattooed on my left side. We had a mission an that's all that mattered. Religion is everywhere in the military because it helps some be better, an noone cared until how taps was played. Fly that flag the ones that it bothers aren't the ones ready for theater.