Treaty providing for the renunciation of war as an instrument of national policy

More commonly known as the Kellogg-Briand Pact, the Treaty providing for the renunciation of the renunciation of war as an instrument of national policy was initially adopted on August 27, 1928 by Germany, the United States of America, France, Great Britain, India, Japan, Poland, and Czechslovakia. It went into force on July 24, 1929, at which time 32 more countries' instruments of definitive adherence brought them into the treaty; a number of other countries later ratified it.

For its time, it was one of the most widely accepted international agreements. Depending on the starting date selected for the Second World War (e.g., the Manchuria Incident? the invasion of Poland?), it was one of the most quickly ignored international agreements. Nevertheless, it was considered as part of the indictments for the charges of conspiracy against peace and waging aggressive war at the International Military Tribunal (Nuremberg) and the International Military Tribunal (Tokyo).

Provisions
The key articles stated that the countries signing the treaty [condemned] "recourse to war for the solution of international controversies, and renounce it as an instrument of national policy in their relations with one another," and [agreed] that "the settlement or solution of     all disputes or conflicts of whatever nature or of whatever origin they may be, which may arise among them, shall never be sought except by pacific means."

Relation to later developments
Its concepts certainly influence the United Nations Charter, but are not as explicit in that document. An explicit renunciation of war does appear in the post-WWII Japanese constitution, and the revised German constitution, while not as strong in its phrasing, also speaks against military action.