With three hundred thousand Catholic young adults in its ranks, the Archdiocese for the Military Services, USA, is the largest organization of young adults in the world. It also has the greatest need for evangelization of and engagement with Catholic young adults between the ages of eighteen and twenty-nine. Just think about the special challenges this population faces, and you can see how difficult it can be for them to practice their faith and make connections with fellow Catholics. As one service member put it, “I didn’t think I needed God until I felt so alone when I was deployed and far away from my family and friends.”