Robert E. Lee (1807-1870)

Robert Edward Lee was a Confederate general whose early actions in the American Civil War led to his appointment as the overall commander of the Confederate States Army near the end of the war. He led the Army of Northern Virginia, the Confederacy's most powerful army, from 1862 until its surrender in 1865, earning a reputation as one of the war's most skilled tacticians.

Quotes

To be a good soldier, you must love the army. To be a good commander, you must be willing to order the death of the thing you love.
You cannot be a true man until you learn to obey.
True patriotism sometimes requires of men to act exactly contrary, at one period, to that which it does at another, and the motive which impels themthe desire to do rightis precisely the same.

Patriotism
It is well that war is so terrible - otherwise we would grow too fond of it.

War
Duty then is the sublimest word in the English language. You should do your duty in all things. You can never do more, you should never wish to do less.

Duty
Strike the tent.