"The working class, which is the principle supplier of soldiers, and which bears the brunt of the material sacrifices, is in particular the natural enemy of wars, because wars contradict the aim it pursues, namely, the creation of an economic system founded on socialist principles, which in practice will give effect to the solidarity of peoples..."

- V.I. Lenin, Bellicose Militarism and the Anti-Militarist Tactics of Social-Democracy