The Drosderian Lair is an Alien building in Earth 2160. It is the more advanced form of the Drosderian Nest.
Apart from it's role in the defense against aircraft, it is also capable of distracting and destroying enemy missiles, including artillery rockets and AA projectiles of other factions ground AA units, this defense cannot be penetrated no matter the amount of missiles used, making the bases protected by this building effectively invulnerable against missile artillery attacks, as well as making any alien warships stationed near it that much harder to destroy.
Advanced form of a Droserian Nest - attacks and nullifies incoming rocket missiles.