"If your playing against the Americans, the first thing you need to do before you have a major attack on the ground is take out its air force. Americas air force can really cripple an attack, and can hurt your bases outside you main one." - Dude

"You can beat the computer at 10th level in under 5-10 min. by playing the Americans. First build the Lincoln Memorial wonder first thing along with a university. Build lots of workers have them build these two buildings only. Research U.S special attacks and defensives immediately launch a paratroop drop in the first few minutes of the game in the heart of their capital. By using the American's offensive and defensive special abilities the 30 or so paratroopers can deliver a quick knock out punch before the computer's civilization ever gets up to speed. We tried it on all the WWII civilizations with success. By the way my thirteen year old came up with this one." - RickX

"When playing against Germany you need to attack early and often.  If you don't there won't be much chance for you to stop Germany's military might." - TEM

"If you are facing the Germans, the most important thing to do is to: 1. Make sure that Brandenburg Gate is not to be built!!!
REASON: If any rocket bases are built destroy them all before they use the infinite supply of gold to launch devastating missile strikes on your base! 2. If missiles are launched - make sure you have plenty of fighters since the most common missile is a V-2 which can be shot down with a nimble fighter.

PS: Don't even think of sending tanks into German territory unless you want your army to be wiped out by the superiority of the King Tiger!" - {Rna} Jackb537

"In the medieval ages, you'll want to be the Franks. They don't need to build houses, and they can also use slash and burn to take enemy forests. They also have superior military and move quicker." - perky

"its always good to be korean since they have awesome infantry attacks due to martial arts. i was seven franks against me one korean and i held them with martial arts. give it a go i did it." - me dude9999