Rikti Invasions of 2008
Go back a couple of hundred years and the rules of warfare was a bit different from today. That could include a more rigid schedule on when and where to meet up and beat the crap out of each other.
The Rikti seem to have and oldfashioned view here and have announced when they are going to attack the Rogue Isles and Paragon City again throughout the year. Obviously they are somewhat pessimistic or realistic about the outcome, since they have the whole year planned. No quick wins here. Or maybe they just want people to feel safe.
Anyway, each invasion period seem to last for close to a week, starting today. I really like the Rikti invasions, they are generally good fun with intense fighting, clear goals, everyone can join in together and without the need for lengthy commitments.
Kick some Rikti butt!