The necessary prerequisite for keeping war at bay is free trade, both in domestic affairs and in international relations. Only this path eliminates the conflicts that breed war. It does not respect the rights of neutrals. Millions are killed, enslaved, or expelled from the dwelling places in which their ancestors lived for centuries. Mises is sometimes described as an internationalist, but he distinguished between true and false internationalism.
Modern civilization is a product of the philosophy of laissez faire.
It cannot be preserved under the ideology of government omnipotence. Statolatry owes much to the doctrines of Hegel. To defeat the aggressors is not enough to make peace durable. The main thing is to discard the ideology that generates war. American needs a party of peace, not necessarily a political party but a social and cultural pressure group that consistently and relentlessly embraces peace as an ideal, and the free society as the proper model for achieving that peace.