Russians win at Tannenberg and occupy Konigsberg with threats to go deeper into the country. German offensive to Paris stalls per OTL. Russians begin preparations for much larger push into Germany, but Christmas truce causes mild panic. A year passes with few results and copious corpse counts. Peace offers via Vatican floated, negotiated, and accepted in Treaty of Rome on 01 April 1916. Poland becomes a kingdom on paper, Germany gives up Alsace-Lorraine after plebiscite there goes 60-40 in favor of France. Alsace was even, Lorraine was *not*. Russians secure Konstantingrad as the Ottomans collapse and shore up their interests there.