With a POD after 1871, so after the foundation of te German Empire or the Ausgleich or the proclamation of the Third Republic, have the military alliances established in our timeline that would eventually become opposing sides to World War One establish much closer connections and cooperation.
Now, what I mean here could be something like this: the Dual Alliance includes a Customs Union or a free trade agreement, the Entente also covers economic Integration, or if we want to remain at a military level late scale joint plans of war & unified command, similar to or more far reaching than the structure of NATO today.
Now, what I mean here could be something like this: the Dual Alliance includes a Customs Union or a free trade agreement, the Entente also covers economic Integration, or if we want to remain at a military level late scale joint plans of war & unified command, similar to or more far reaching than the structure of NATO today.