 Complete the following phrase:  Set in Russia and Eastern Europe during the Mongol invasion 12371242, the game features three playable races  Mongols, Russians, and Crusaders  each of whom has their own campaign, which occasionally overlaps with the other two. The campaigns feature fictional depictions of historical figures such as Batu Khan, Burundai, Jebei, Subutai, Yuri Ingvarevich, Yuri Vsevolodovich, Evpaty Kolovrat, Alexander Yaroslavich, Birger Magnusson, and Herman von Salza, and depict such events as the fall of Ryazan, the 