As always, the Alliance of America and a collaboration of European countries enters the fray to defend peace for the world. The allies have mostly stayed true to the tactics they have used through the ages, with heavy infantry, powerful aircraft, and light vehicles, however they have slightly revised thier strategy on the ground.
The Allies boast their higher degree of technology, which has given them access to mech vehicles, which, while being light and fast like the Allies' vehicles usually are, also have the ability to deploy themselves into heavy turret emplacements, which form the backbone of Allied ground power, and can hold the line against oncoming enemies to shield your artillery and allow easy pickings for your aircraft. Thier heavy infantry are mobile and powerful, and some can also deploy, and thier airforce is incredibly advanced and versatile.