Thus we go on. Necessity hastens the progress of civilization and freedom. Desolating war--protracted by mistaken leniency--has educated the nation to a proper sense of the treason, and nerved it to the determination to crush it by all possible means and at every hazard. The man who has heretofore objected to Negro enlistments, acquiesces when his own name appears upon the list of the Enrolling Officer. The day that saw the change in the miserable, not to say treasonable, policy of alienating the only real friends we have had in the South, and their successful employment as soldiers, stands first in the decline of the Rebellion. Its suppression is fixed, and is to be measured by the vigor with which we press the war. 

"Vengeance is secure to him
Who doth arm himself with right."

Wow. Powerful stuff, no? That is William H. Armstrong's concluding paragraph in Red-Tape and Pigeon-Hole Generals. "Thus we go on." Love that. Armstrong wrote the book as the war was ongoing, in 1863.

"Mistaken leniency;" "crush;" "the only real friends we have had in the South;" "suppression is fixed," "measured by...vigor...press the war." "Vengeance"! Armstrong hated the South. Shouldn't one kill out of hatred? Shouldn't one feel when one kills? What sort of man kills out of a sense of duty? A Nazi. Eichmann. Just following orders, doing my duty. Nothing personal, old boy.