FFXI: Campaign in the Vana'diel Theater

How much more epic can battles get?

The latest feature coming to FFXI was announced today. They're going to be introducing the Allied Campaign, a way for individual players to take part in epic ongoing battles.

Continuing in this vein, the development team has been racking their brains for a new system to further intrigue the adventuring population of Vana'diel. The result? An endeavor that can be engaged in simultaneously by numbers exceeding those of Besieged, while at the same time allowing for individual actions to have concrete, observable repercussions in the world of Vana'diel, and plenty of good old-fashioned battle and strategy!
Set on the stage of the Crystal War itself, this is the Allied Campaign. The overall campaign system is organized into four subdivisions: Campaign battles, Campaign Ops, headhunting, and tactical assessment.

Read all about it at the FFXI website.