Well, really I am just interested in where you get the 30 days figure from, or a war against anyone besides those who are with the antichrist and his army.
Briefly, it’s the 1,260 days of the last half of the Tribulation, but it’s extended by 45 days ... 30 days plus 15 days. In a nutshell, that’s it.
In terms of who are those with the Antichrist ... everyone who isn’t saved. Namely, anyone who is not saved is with the devil, whether they are directly related to the Antichrist’s actual earthly one-world government, his army ... or ... they are merely a side participant/citizen in it. They all, most likely, have the mark.
I would be glad to talk more about it, but that conversation will drag on for a while ... :-) ...