This a take on what the world might have looked like if Kaiser Wilhelm II had taken Bismarck's advice not to let Austria attack the Balkans. In this history, Kaiser Wilhelm will take the opposite route and defend the sovereignty of these nations.
First a conqueror, then a statesman, Bismarck led the German Empire through war and peace into a group of entangling alliances in an effort to keep Europe from falling into a great war. Thankfully, Emperor Wilhelm II of Germany, Bismarck's superior, listened to him and continued to act in the interests of all Germans.
Bismarck would retain the Chancellorship until his 80th birthday in 1895. He was given a duchy by Emperor Wilhelm II and would turn his family into a mediatized house of Germany. Wilhelm II tried hard to listen to Bismarck's advice but with The Great War brewing and an angry French Republic, it became hard to keep the peace.
Treaties of the Early 1900s
Wilhelm signed the Hamburg Treaty with Great Britain recognizing British control of the seas in return for an alliance and a sharing of naval technology. Under the Treaty, Germany was allowed to build up their naval arsenal as long as they kept their fleet at less than 2/3 the power of the British Navy.
Germany tried to maintain the Alliance of Three Emperors between itself, Austria and Russia. Yet the Austrians wanted to invade farther into the Balkans and Russia felt compelled to stop them. Wilhelm decided to put Germany firmly behind Russia in demanding that Austria back off the Balkans.
Austria in turn made an alliance with France and the Ottomans in order to secure a front against Germany. The Ottomans were promised to take Greece and Bulgaria. Austria was promised to take Romania and Serbia. France and Austria also agreed to divide Southern and Eastern Germany between the two of them while letting northern Germany exist as a puppet state of the alliance.
Having heard of the joint French, Austrian, Ottoman Alliance; Germany decided it needed to call up the allies of its own. Russia promised to support Germany but Britain, having close ties with France, only promised to remain neutral in the coming war. Germany began sending military armaments to the Balkan States to try to shore up defense. They also contacted Belgium asking for military access so German forces could expand a front with France. Due to good relations and a positive signal for Great Britain, the Belgians agreed.