Those wars are unjust which are undertaken without provocation. For only a war waged for revenge or defense can be just.

There has never been a just [war], never an honorable one — on the part of the instigator of the war. I can see a million years ahead, and this rule will never change in so many as half a dozen instances. The loud little handful — as usual — will shout for the war. The pulpit will — warily and cautiously — object — at first; the great, big, dull bulk of the nation will rub its sleepy eyes and try to make out why there should be a war, and will say, earnestly and indignantly, 'It is unjust and dishonorable, and there is no necessity for it.' Then the handful will shout louder. A few fair men on the other side will argue and reason against the war with speech and pen, and at first will have a hearing and be applauded; but it will not last long; those others will outshout them, and presently the anti-war audiences will thin out and lose popularity. Before long you will see this curious thing: the speakers stoned from the platform, and free speech strangled by hordes of furious men who in their secret hearts are still at one with those stoned speakers — as earlier — but do not dare say so. And now the whole nation — pulpit and all — will take up the war-cry, and shout itself hoarse, and mob any honest man who ventures to open his mouth; and presently such mouths will cease to open. Next the statesmen will invent cheap lies, putting the blame upon the nation that is attacked, and every man will be glad of those conscience-soothing falsities, and will diligently study them, and refuse to examine any refutations of them; and thus he will by and by convince himself the war is just, and will thank God for the better sleep he enjoys after this process of grotesque self-deception.

When war is not just it is subsequently justified; so it becomes
many things. In reality, an unjust war is merely piracy.
It consists of piracy, ego and, more than anything, money.
War is our century's prostitution.

In a general view, there are few conquests that repay the charge of making them, and mankind are pretty well convinced that it can never be worth their while to go to war for profit's sake. If they are made war upon, their country invaded, or their existence at stake, it is their duty to defend and preserve themselves, but in every other light, and from every other cause, is war inglorious and detestable.

We fight good wars in medical laboratories, endlessly seeking to cure the scourges of cancer, heart disease, diabetes, and mental illness. We fight good wars when we devote time, energy, and money to relieve the suffering of hungry people around the world. We fight good wars when we come to the aid of those struck by the overwhelming forces of capricious nature: fire, flood, drought, hurricanes, and earthquakes. We fight good wars when we refuse to allow injustice to be done to others. We fight good wars when we oppose hate, bigotry, and ignorance.

No. There is one fairly good reason for fighting — and that is, if the other man starts it. You see, wars are a wickedness, perhaps the greatest wickedness of a wicked species. They are so wicked that they must not be allowed. When you can be perfectly certain that the other man started them, then is time when you might have a sort of duty to stop him.

War at all times, whether a civil war between sections of a common country or between nations, ought to be avoided, if possible with honor. But, once entered into, it is too much for human nature to tolerate an enemy within their ranks to give aid and comfort to the armies of the opposing section or nation.

War is an ugly thing, but not the ugliest of things: the decayed and degraded state of moral and patriotic feeling which thinks that nothing is worth a war, is much worse. When a people are used as mere human instruments for firing cannon or thrusting bayonets, in the service and for the selfish purposes of a master, such war degrades a people. A war to protect other human beings against tyrannical injustice; a war to give victory to their own ideas of right and good, and which is their own war, carried on for an honest purpose by their free choice, — is often the means of their regeneration. A man who has nothing which he is willing to fight for, nothing which he cares more about than he does about his personal safety, is a miserable creature who has no chance of being free, unless made and kept so by the exertions of better men than himself. As long as justice and injustice have not terminated their ever-renewing fight for ascendancy in the affairs of mankind, human beings must be willing, when need is, to do battle for the one against the other.

I am convinced that it is one of the most unjust wars that has ever been fought in the history of the world. Our involvement in the war in Vietnam has torn up the Geneva Accord. It has strengthened the military-industrial complex; it has strengthened the forces of reaction in our nation. It has put us against the self-determination of a vast majority of the Vietnamese people, and put us in the position of protecting a corrupt regime that is stacked against the poor.

There is neither a foreign war nor a civil war; there is only just and unjust war.

If any honor existed in war, it was in fighting to protect others from harm

An unavoidable war is called justice. When brutality is the only option left it is holy

War itself requires no particular motivation, but appears to be ingrained in human nature and is even valued as something noble; indeed, the desire for glory inspires men to it, even independently of selfish motives.

"I see what you think you mean," said the magician, "but you are wrong. There is no excuse for war, none whatever, and whatever wrong which your nation might be doing to mine-short of war-my nation would be in the wrong if I started a war so as to redress it. A murderer, for instance, is not allowed to plead that his victim was rich and oppresing him, so why should a nation be allowed to? Wrongs have to be redressed by reason, not force."