Sure.
GCR wars are typically fought via one of three routes: propaganda, infiltration, or proxy. Propaganda is pretty much what you already see on the gameplay forums already: one side publishes something, another does the same, they mull / fight over it, etc. Maybe some other stuff is published, but in general people watch the two sides the closest. Infiltration involves spying, stacking, whatever in an attempt to manipulate the other side. Less common, but probably a bit more effective if one doesn't get caught. But there's volumes one can write about that. Third is taking the battles out to the smaller UCR's / warzones.
In short, a vote on a delcaration of war is meaningless, especially as it remains incomplete, because these wars are typically sitskreigs.