Columbia subject headings:
International relations.
Kant, Immanuel, 1724-1804--Political and social views.
Harvard subject headings:
International relations--Philosophy
Internationalism.
Kant, Immanuel, 1724-1804--Political and social views.
Peace (Philosophy)
Princeton subject headings:
International relations.
Kant, Immanuel, 1724-1804--Political and social views.