The Aegis is a critical defensive structure that intercepts incoming ICBMs and nuclear artillery shells. Once stockpiled with anti-nuke missiles, it automatically protects nearby areas within its large coverage radius. Though it does not attack conventional units, it plays a vital role in late-game base defense, preventing your entire base from being wiped out by one nuclear missile.

It protects a 2,000 area of effect around itself, firing at any nuke targeted in that area. It stockpiles one anti-nuke every 90 seconds, at a cost of 150 metal and 7,500 energy per shot.