Write an interesting, lengthy and plausible alternate history scenario in the form of a history book chapter, in which Germany restores the German Empire of the Kaisers and restores its 1914 borders by exploiting the 2+4 agreement after the fall of the Berlin Wall and also regains the satellite states it had created via the Brest-Litovsk treaty in the process. 

The chaos in Central Europe and the Balkans during the collapse of the Soviet Union and the Warsaw Pact leads to the restoration of Austria-Hungary to its 1914 borders, governed on a modernized version of Franz Ferdinand's United States of Greater Austria plan. The restored Austria-Hungary turns what is left of Poland into a satellite kingdom and also restores the monarchies of Greece and Bulgaria, effectively making them satellites of the Hapsburg realm. 

Austria also intervenes in the Yugoslav wars, crushing the weakened and divided Serbs with ease and separating Montenegro as a Austrian satellite kingdom. Serbia itself becomes an Austrian satellite kingdom after the Yugoslav wars, forced to bear all responsibility for WW1 and the death of Franz Ferdinand.

The Austrians and Germans intervene in the crumbling Soviet Union after the failed 1991 coup in Moscow and restore the Russian Empire in European Russia, liberating the Turkic peoples of the Soviet Union from communist oppression and making Kalymakia, Chechenya and Mari-El into satellite kingdoms. 