So, by the late 1200s the GH has conquered all of Rus and the aral sea area, the Ilkhanate has everything south of the aral sea, arabia, minus coastline and is about to KO the fatamids last holdout in Abbesinia. The Aztecs hold Mauretania minus Alger, adwell as Mali and most of scotland and norway. Right now the setup is me (ERE) en HRE as a united front against a tripple invasion for Poland, Mesopotamia and Afrika. No other nation can muster the troops needed to even tickle the hordes, not even France....what do? Stab HRE in the back and eat asmuch as i can, or stand by them in a gloriius last stand of orthodoxy?