maybe, and of course alliances have been prepped for war for a while.
Fact of the matter is though that for anyone who can read the attitude displayed by NPO and TORN during these so called "negotiations" was laughable at best and frankly insulting at worst. Your Leadership had all the options to make peace, they could have approached OV in a civil manner and most likely they would have achieved some kind of reparation simply to get the incident over and done with.
Instead they trumped up a fairly laughable charge and tried to play tough guy, when that did not work they stalled the negotiations.
And now comes the fun part, instead of doing the honorable thing and saying: "okay this means war" Moo fakes a disconnect and then sends his alliance on the attack.
Seriously how cowardly can you get?
You can tell me that he disconnected for real, and i'll even believe you, but what i won't believe is that you attacked without him giving the order, so facts of your DoW are:
1) Moo disced out of an ongoing negotiation.
2) While everyone else was waiting for him (because you know that is kind of the standard mode of operation, you disconnect then you reconnect and rejoin the channel) the order to attack was given.