We decided to launch raids from this bridgehead to scare the mages and force them to get stuck surrounding our sector around the bridge, meanwhile the elves and dwarves would cross the northern mountains, bridge the river and flank the mages, also the romans would bridge the river south of us to completely encircle the enemy, then we would wipe them out with our four combined armies, obviously it would only wipe out the mages in the immediate vincinity of our sector, but it would allow us to fortify our new position relatively unhindered, during this the main forces of our roman, elvish and dwarvish allies would make similar attacks into mage, indian, norse, and egyprtian territory... then we would use the winter to fortify our positions as there was rarely any fighting in the winter, then there was something we would do personally agaist the mages, the tech would launch bombing raids onto indian, magic, and egyptian weapon manufacturing and training centers hopefully crushing or at least weakening their numbers and resolve...