This paper revisits the 1928 Pact of Paris (also known as the Kellogg-Briand Pact) with special consideration for German and Austrian scholarship during the interwar period and embed it in its historical context, from the establishment of the League of Nations to the Nuremberg Tribunals all the way to the United Nations Charter. Given that the 2016 election of Donald Trump as US president and the parallel rise of China prompts us to contemplate whether we might be witnessing the return of a quasi-Cold War or Great Power-politics, a few concluding thoughts on the waning ‘liberal world order’ and the comeback of (neo-)realist thinking are also warranted.