Semper Fidelis.
I count the USMC, and most Marines (Murtha the corrupt excluded) to be a national treasure.
And I did time in the USN.
The USArmy has at times been nearly as honorable but has found itself in the last decade a national disgrace because of sorry leadership-(see the Ft Hood massacre response as example). Embarrrassssing and anti-American. Casey is the worst of the worst.