Well, the British were not taught a lesson by their defeat in Spain, and have stirred up trouble for us in the Germanies.  The Emperor has decided that this is a good opportunity to settle these questions once and for all.  Our forces are driving the British out of Hanover and Hesse, and our ally the King of Bavaria has invaded Saxony.  Unfortunately, the Bavarian advance has been brought to a halt, and now the Prussians have chosen to intervene.  Your mission, General, is to race across Saxony to aid the Bavarians in breaking out, then overrun the country before the Prussians arrive in force.