Necromancer

The Grand Alliance is more unified and suffers less in-fighting (at least not on a violent scale) than Velzix's crew. You figure you should take them out first.

"Catalina I think it's time to attack Grand Alliance and wipe them out once and for all." You say walking into her study.
"Oh you do huh? Got a plan in mind of how to go about it? Because it's not going to be easy."
"I figure the strongest link is the Zalan Empire. If we take them out, the rest of the Alliance will quickly fall apart and we can concentrate on Velzix."
"Hmm, you make it sound so easy. I hope you know what you're doing."
"Relax, I always know what I'm doing. Set it up and organize the troops, I'll be overseeing this one personally."

Months pass and you make good progress. You begin taking town after town like an unstoppable juggernaut. However, when you reach you reach the Zalan Empire's borders you begin to face heavier resistance. The Grand Alliance combined with the full brunt of Zalan's own military is proving to be more troublesome than you anticipated. They've developed a lot more technological advances since the last time you were here. The cannons are really taking a toll on your corporeal troops.

You slog on through, but eventually reach a stand still when you finally reach the gates of the Zalan capital. Your sister is overseeing the defense of Zalan's capital which might explain why you're having so much trouble. She is successfully countering every one of your plans. You've attempted to send a message to her, but you've yet to hear any kind of response

You don't quite have enough strength to break through and you're starting to stretch yourself a little thin. Reports tell you that other civilized nations are sending military detachments to help and another Grand Alliance army is on the way. At this point you're either going to have to send for reinforcements yourself or retreat and regroup.