“Again there is a trite saying that good Soldiers never think. Though this may not be true, yet it explains the cautionary advice that War is too serious a matter to be left to Soldiers and that a very good Soldier should not be in charge of the War Office. His place should be on the battle field where he is unsurpassable. Actually, "Young men don't make War, they fight them. Old men make Wars and survive them. They are immensely brave about other people's sons," says Nicholas Montsarrat. They are the ones that jest at scars, who never felt a wound.”

To A. Schmidt and others - February 4th, 1943. Quoted in "Report of the Special Section of the Don Front NKVD to Special Sections Department of NKVD USSR"

Mein lieber Professor, ein solcher Krieg hätte uns wenigstens 30,000 Mann brave Soldaten gekostet, und uns im besten Falle keinen Gewinn gebracht. Wer aber nur ein Mal in das brechende Auge eines sterbenden Kriegers auf dem Schlachtfeld geblickt hat, der besinnt sich, bevor er einen Krieg anfängt.
In June 1867, protecting the Treaty of London
1860s

A Tradition of Victory, Cap 14 "The Toast is Victory!"

As quoted in Stonewall Jackson and the American Civil War (1904) by George Francis Robert Henderson http://www.gutenberg.org/etext/12233, Ch. 25 : The Soldier and the Man, p. 481
Context: War means fighting. The business of the soldier is to fight. Armies are not called out to dig trenches, to throw up breastworks, to live in camps, but to find the enemy and strike him; to invade his country, and do him all possible damage in the shortest possible time. This will involve great destruction of life and property while it lasts; but such a war will of necessity be of brief continuance, and so would be an economy of life and property in the end. To move swiftly, strike vigorously, and secure all the fruits of victory is the secret of successful war.

O’Connell recalling the spirited conduct of the Irish soldiers in Wellington’s army, at the Monster meeting held at Mullaghmast. Envoi, Taking Leave of Roy Foster, by Brendan Clifford and Julianne Herlihy, Aubane Historical Society, Cork.pg 16

As quoted in U.S. News & World Report, Vol. 110, Issues 5 (1991 Feb 11), p. 32
Context: A professional soldier understands that war means killing people, war means maiming people, war means families left without fathers and mothers. All you have to do is hold your first dying soldier in your arms, and have that terribly futile feeling that his life is flowing out and you can’t do anything about it. Then you understand the horror of war.
Any soldier worth his salt should be antiwar. And still there are things worth fighting for.

Source: Quartered Safe Out Here (1992), p. 212.

On the morality of the firebombing campaign http://www.pbs.org/wgbh/amex/bomb/peopleevents/pandeAMEX61.html)