Spy satellite (Red Alert 2)

The Spy Satellite Uplink was an Allied structure used during the Great World War III that revealed the entire battlefield. When this structure was built, it would receive contact with a spy satellite and would allow a commander to see enemy troop movements in real time. This gave a commander a huge advantage over any enemy force. In fact, the closest the thing the Soviets had were Spy Planes, and Yuri only had the Phychic Radar. Both of these were only capable of revealing a certain portion of the battlefield for a limited amount of time. In contrast, the Spy Satellite Uplink could reveal the entire battlefield permanently, thanks to the spy satellites orbiting the planet. This provided great intelligence to the Allies and subsequently a great advantage over the opposing force.