The U.S Navy seal (The only easy day was yesterday).

My Nation expects me to be physically harder and mentally stronger than my enemies. If i get knocked down, i'll will get back up every time. I will draw on every remaining ounce of strength to protect my teammates and to accomplish our mission. I am never out of the fight.
We demand discipline. We expect innovation. The lives of my teammates and the success of our mission depend on me, My training is never complete.

We train for war and fight to win, I stand ready to bring the full spectrum of combat power to bear in order to achieve my mission and the goals established by my country. The execution of my duties will be swift and violent when required yet guided by the very principles that I serve to defend.

Brave men have fought and died building the proud tradition and feared reputation that I am bound to uphold. In the worst of conditions, the legacy of my teammates steadies my resolve and silently guides my every deed. And i will not fail.

God bless AMERICA.
(https://www.public.navy.mil/NSW/Pages/EthosCreed.aspx)