Command & Conquer Red Alert 2 gives players an onslaught of new units, tactics and strategies. As in the original, gamers can choose to lead Soviet or Allied forces. Soviet commanders will invade North America and try to claim it for mother Russia. Allied commanders will fight to push back the invaders and save liberty. Both sides are well-armed with conventional weapons and experimental technology. The Soviets can engage in psychic warfare, wield nuclear weapons and fry all they survey with Tesla technology. Allied forces can teleport with chrono technology, conduct covert operations with the help of gap generators, and rain down lightening bolts through weather control. Supporting these high-powered, advanced weapons are massive conventional forces, including armies, air power and navies.