Who said "When you make a promise, you keep it."?

This quote is attributed to War Machine.

When you make a promise, you keep it. - War Machine

"When you make a promise, you keep it."

War Machine

"Next time, maybe you'll listen when I tell you something."

"I'm a soldier. That's what I do."

"You think you're the only one with something to prove?"

"I follow orders. That's the difference between us."