Strategy to defeat final boss in Advance Wars 1

Does anybody have any good suggeestions for winning the final battle in Advance Wars 1?

I continually am getting creamed by meteor strikes and the final boss' ginormous army. Any tips would be greatly appreciated :D

I loved playing this game. Anyway, I forgot what the last mission was about so here's a tip from gamefaqs:

"In this Mission you'll want to control the Air, if you can achieve Air Superiority, or at least keep Sturm grounded, you shouldn't have any surprises to expect. Another important thing to note is, that Sturm's troops have a high attack bonus, but they have a Defense deduction, so always make sure you attack him, never stay in defensive mode. Always attack, attack, ATTACK! And you should win this mission."

you can read more here: http://www.gamefaqs.com/gba/471043-advance-wars/faqs/23377

or you could read the other walkthroughs there. Hope it helps!