From a retired Army redleg, HURRAY for the USMC!
and for those of you perhaps unfamiliar with the oath to which he refers:
I, (state your name), having been appointed a (rank) in the United States (branch of service), do solemnly swear (or affirm) that I will support and defend the Constitution of the United States against all enemies, foriegn and domestic; that I will bear true faith and allegiance to the same; that I take this obligation freely, without any mental reservation or purpose of evasion; and that I will well and faithfully discharge the office upon which I am about to enter. So help me God.
I have taken that oath!