I visited all the cities and received their help (already closed the gates except one), saving the Imperial City for last. However, after receiving the final approval from the Counts and Countesses the Quest would no longer stay active. I went to see the Chancellor hoping that would allow me to make it active again, but couldn't find him. I also visited Jauffre and the Bruma Countess to see if I could advance the quest further, but their conversations didn't allow me. I even talked to some cocky troops. Was that all I had to do, was rally the troops? I thought there would be a big battle or something. Thanks for any help.
By the way, I'm playing on the X-Box.