Perpetual Peace: A Philosophical Sketch () is a 1795 book authored by German philosopher Immanuel Kant. In the book, Kant advances ideas that have subsequently been associated with democratic peace, commercial peace, and institutional peace.
Summary
Kant proposed a peace program to be implemented by governments. The "Preliminary Articles" described these steps that should be taken immediately, or with all deliberate speed: "No secret treaty of peace shall be held valid in which there is tacitly reserved matter for a future war" "No independent states, large or small, shall come under the dominion of another state by inheritance, exchange, purchase, or donation" "Standing armies shall in time be totally abolished" "National debts shall not be contracted with a view to the external friction of states" "No state shall by force interfere with the constitution or government of another state" "No state shall, during war, permit such acts of hostility which would make mutual confidence in the subsequent peace impossible: such are the employment of assassins (percussores), poisoners (venefici), breach of capitulation, and incitement to treason (perduellio) in the opposing state"
Three Definitive Articles would provide not merely a cessation of hostilities, but a foundation on which to build a peace.
Kant's essay in some ways resemble modern democratic peace theory. He speaks of republican, Republikanisch (not democratic) states, which he defines to have representative governments, in which the legislature is separated from the executive. Kant claims that the republics will be at peace with each other, as they will tend towards pacifism more so than other forms of government. The essay does not treat republican governments as sufficient by themselves to produce peace: universal hospitality (ius cosmopoliticum) and a federation of free states are necessary to consciously enact his six-point program.
Kant also specifies the rights universal hospitality affords strangers: to visit a foreign land under the presumption that they will be treated without hostility if presenting without malintent—as well as its limitations:"the nation may send [the visitor] away again, if this can be done without causing his death" and that it is "not a right to be treated as a guest to which the stranger can lay claim" —these rights being necessary to accomplish the ultimate goal of intercommunication and peaceful relations between nations.
Kant argued against a world government, arguing it would be prone to tyranny. The preferable solution to anarchy in the international system was to create a league of independent republican states.
Legacy and influence
The general idea that popular and responsible governments would be more inclined to promote peace and commerce became one current in the stream of European thought and political practice. It was one element of the British foreign policy of George Canning and Lord Palmerston. It was also represented in the American liberal internationalism of Woodrow Wilson’s Fourteen Points. Kant's recommendations were clearly represented in the 1940s in the United Nations.
In the early days of the First World War, H.G. Wells stated that it would be "the war to end war", on the grounds that, once Prussian militarism and autocracy was replaced by popular government, European nations would not ever go to war with each other, because militarism and armaments resulted from the German threat. This idea was much repeated and simplified over the next four years; at present, the idea that democracy by itself should prevent or minimize war is represented by various democratic peace theories.
In 1909, Norman Angell relied only upon the second leg, arguing that modern commerce made war necessarily unprofitable, even for the technically victorious country, and therefore the possibility of successful war was The Great Illusion. James Mill had described colonialism as outdoor relief for the upper classes; Joseph Schumpeter argued that capitalism made modern states inherently peaceful and opposed to conquest and imperialism, which economically favored the old aristocratic elites.