There are articles in the Code of Conduct for all members of the armed forces. We all took an Oath, some took it many times.

Article VI of the Military Code of Conduct

I WILL NEVER FORGET THAT I AM AN AMERICAN, FIGHTING FOR FREEDOM, RESPONSIBLE FOR MY ACTIONS, AND DEDICATED TO THE PRINCIPLES WHICH MADE MY COUNTRY FREE. I WILL TRUST IN MY GOD AND IN THE United States of America.

http://www.pbs.org/wgbh/amex/honor/filmmore/ps_code.html

Regards

Sunny:> ))