No metaphor just truth:
In war, truth is the first casualty. ~Aeschylus
War does not determine who is right - only who is left. ~Bertrand Russell
The direct use of force is such a poor solution to any problem, it is generally employed only by small children and large nations. ~David Friedman
Never think that war, no matter how necessary, nor how justified, is not a crime. ~Ernest Hemingway
You can no more win a war than you can win an earthquake. ~Jeanette Rankin
You are not going to get peace with millions of armed men. The chariot of peace cannot advance over a road littered with cannon. ~David Lloyd George
Man is the only animal that deals in that atrocity of atrocities, War. He is the only one that gathers his brethren about him and goes forth in cold blood and calm pulse to exterminate his kind. He is the only animal that for sordid wages will march out... and help to slaughter strangers of his own species who have done him no harm and with whom he has no quarrel... And in the intervals between campaigns he washes the blood off his hands and works for "the universal brotherhood of man" - with his mouth. ~Mark Twain
It doesn't require any particular bravery to stand on the floor of the Senate and urge our boys in Vietnam to fight harder, and if this war mushrooms into a major conflict and a hundred thousand young Americans are killed, it won't be U.S. Senators who die. It will be American soldiers who are too young to qualify for the Senate. ~George McGovern
We kill because we are afraid of our own shadow, afraid that if we used a little common sense we'd have to admit that our glorious principles were wrong. ~Henry Miller, The Wisdom of the Heart, 1941
They wrote in the old days that it is sweet and fitting to die for one's country. But in modern war there is nothing sweet nor fitting in your dying. You will die like a dog for no good reason. ~Ernest Hemingway
War is only a cowardly escape from the problems of peace. ~Thomas Mann
We have failed to grasp the fact that mankind is becoming a single unit, and that for a unit to fight against itself is suicide. ~Havelock Ellis
The basic problems facing the world today are not susceptible to a military solution. ~John F. Kennedy
If it were proved to me that in making war, my ideal had a chance of being realized, I would still say "no" to war. For one does not create a human society on mounds of corpses. ~Louis Lecoin
I would like it if men had to partake in the same hormonal cycles to which we're subjected monthly. Maybe that's why men declare war - because they have a need to bleed on a regular basis. ~Brett Butler
Man has no right to kill his brother. It is no excuse that he does so in uniform: he only adds the infamy of servitude to the crime of murder. ~Percy Bysshe Shelley, "A Declaration of Rights"
Dress it as we may, feather it, daub it with gold, huzza it, and sing swaggering songs about it, what is war, nine times out of ten, but murder in uniform? ~Douglas Jerrold
All wars are civil wars, because all men are brothers. ~François Fénelon
Why do we kill people who are killing people to show that killing people is wrong? ~Holly Near
The pioneers of a warless world are the [youth] who refuse military service. ~Albert Einstein
War is a game which were their subjects wise, kings would not play at. ~William Cowper
Only the dead have seen the end of war
~Plato