Avalonia launches everything. Defcon 1. An attack on the UC was unwarranted. Avalonia will honor its military alliance even though the UC is now communist.
Erinaum's and the USSR's (as well as some of the other minor RS countries') important places should be nothing but dust right now, considering that supersonic long range missiles with anti radar coating are hard to shoot down. Atomic submarines sink countless RS vessels. The Tesla Towers along the border are hooked onto nuclear generators, enhancing their range effectively crippling the Erinamese border guard's ability to report that Avalonian forces have just crossed over the border burning everything in their path.
Simultaneously, an Avalonian satelite drops nuclear warheads onto the Red Sphere territorries. Nukes are a reasonable technology since I've been using nuclear generators for a while now, and the ability to drop them from space isn't past reasonable scientific limits. Smaller satelites target RS satelites of any importance.
Considering I've been stockpiling ever advancing missiles, it's not beyond the bounds of reason to assume that you're just a big crater right now. I'm assuming that Avalonia is too since a counterattack is imminent (obivously I can't completely destroy you, even nukes have limited destructive capability).
The Avalonian people are rushed to their bomb shelters.

I expect you'll have some naysaying to do. Nothing I've said, however, is ridiculous. Thus, I advise you to muster your forces for a valliant last stand, history should remember you as brave to the last.