Tigerhawk (an Iowa Princetonian) notes that:
When a democratic nation is at war, there are inevitably those who will object to the way in which the war is being fought, or that it is being fought at all. If the war is manifestly for the country’s survival or otherwise of great moment, the objectors will be so marginalized that they and their arguments will have no effect on the politics of the country, the morale of its military, or the tactics of the enemy. Dissent can, however, have an enormous impact on the means by which a democracy wages a limited war, the persistence with which it wages the war, or whether it wages the war at all.
And proceeds to consider:
the objectives of domestic dissent to limited wars, the impact of anti-war dissent on the means of fighting the war and the morale of the soldiers at arms, the different types of anti-war dissent and, finally, whether some objectives and types of dissent are more moral than others.