For myself, I was bitterly opposed to the measure, and to this day regard the war, which resulted, as one of the most unjust ever waged by a stronger against a weaker nation. It was an instance of a republic following the bad example of European monarchies, in not considering justice in their desire to acquire additional territory.

Generally, the officers of the army were indifferent whether the annexation was consummated or not; but not so all of them. For myself, I was bitterly opposed to the measure, and to this day, regard the war, which resulted, as one of the most unjust ever waged by a stronger against a weaker nation. It was an instance of a republic following the bad example of European monarchies, in not considering justice in their desire to acquire additional territory.

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.

Iraq is an unjust war. I thought then, and I think now, that the invasion of Iraq was unnecessary and unjust. And I think the premises on which it was launched were false.

Unjust war is to be abhorred; but woe to the nation that does not make ready to hold its own in time of need against all who would harm it! And woe thrice over to the nation in which the average man loses the fighting edge, loses the power to serve as a soldier if the day of need should arise!

To me the war was an abomination, a madness, a crime, and from the first moment onwards–more out of impulse than reflection–I inwardly rejected it and could never reconcile myself with it up to this very moment.

[on the Gulf War] I was in the unenviable position of being for the war, but against the troops.

I abhor unjust war. I abhor injustice and bullying by the strong at the expense of the weak, whether among nations or individuals. I abhor violence and bloodshed. I believe that war should never be resorted to when, or so long as, it is honorably possible to avoid it. I respect all men and women who from high motives and with sanity and self-respect do all they can to avert war. I advocate preparation for war in order to avert war; and I should never advocate war unless it were the only alternative to dishonor.

All interstate wars intensify aggression – maximize it … some wars are even more unjust than others. In other words, all government wars are unjust, although some governments have less unjust claims…

I do not often venture to talk to you about public affairs, but surely you will agree with me in deprecating this war with China, which really seems to me so wicked as to be a national sin of the greatest possible magnitude, and it distresses me very deeply. Cannot any thing be done by petition or otherwise to awaken men's minds to the dreadful guilt we are incurring? I really do not remember, in any history, of a war undertaken with such combined injustice and baseness. Ordinary wars of conquest are to me far less wicked, than to go to war in order to maintain smuggling, and that smuggling consisting in the introduction of a demoralizing drug, which the government of China wishes to keep out, and which we, for the lucre of gain, want to introduce by force; and in this quarrel are going to burn and slay in the pride of our supposed superiority.

History shows that wars are divided into two kinds, just and unjust. All wars that are progressive are just, and all wars that impede progress are unjust. We Communists oppose all unjust wars that impede progress, but we do not oppose progressive, just wars. Not only do we Communists not oppose just wars; we actively participate in them. As for unjust wars, World War I is an instance in which both sides fought for imperialist interests; therefore, the Communists of the whole world firmly opposed that war. The way to oppose a war of this kind is to do everything possible to prevent it before it breaks out and, once it breaks out, to oppose war with war, to oppose unjust war with just war, whenever possible.

The term "just war" contains an internal contradiction. War is inherently unjust, and the great challenge of our time is how to deal with evil, tyranny, and oppression without killing huge numbers of people.

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.

There are some who object to war because of its immorality, there are some who shrink from the arbitrament of arms because of its increased cruelty and barbarity; there are a growing number who protest against this method, at the outset known to be unsuccessful, of attempting to settle international disputes because of its imbecility and futility. But there is not a living soul in any country who does not deeply resent having his passions roused, his indignation inflamed, his patriotism exploited, and his highest ideals desecrated by concealment, subterfuge, fraud, falsehood, trickery, and deliberate lying on the part of those in whom he is taught to repose confidence and to whom he is enjoined to pay respect.