Pachomius -- Father of monasticism - 292 - 346 Egypt 9 May
Drafted, befriended Christians who treated the soldiers well, baptized after discharge. Founded the first order of monks that numbered over 7,000 and lasted for 600 years.
Read the entire story here http://www.catholic.org/saints/saint.php?saint_id=800
O ALMIGHTY God, who hast called us to faith in thee, and hast compassed us about with so great a cloud of witnesses; Grant that we, encouraged by the good examples of thy Saints, and especially of thy servant Saint Pachomius, may persevere in running the race that is set before us, until at length, through thy mercy, we, with them, attain to thine eternal joy; through him who is the author and finisher of our faith, thy Son Jesus Christ our Lord. Amen.