The way war is designed at the moment is, what i know, that the leader off an guild holding a town will define a timefarme when wars will take place.
We had 2 wars yesterday which couldnt happen cause the server were down. Result is loss for the attacker and they lost the gold they paid for declaring the war.
Seems AGS is the first gaming company which brought us asymmetric warfare to an game. (serverdowntime and reporting)