Soon after the detonation, the alien Scrin arrived on Earth in order to begin large-scale harvesting of the world's Tiberium deposits. Kane's apparent purpose in bringing them to Earth was to gain access to their highly advanced technology, as he thought to use the monolithic "Threshold" towers the extraterrestrials constructed to bring him and his followers to reach "ascension". As explained in the campaigns, the towers were vulnerable to assault and destruction while under construction, but once completed would partially phase out of existence, rendering them immune to all known human weaponry. To prevent the Scrin from completing construction of the towers GDI forces utilized their ion cannons to strike at the towers in order bring them down before their construction was completed, however, Nod loyalists in Italy would eventually manage to secure one of these gigantic structures (later identified as "Threshold 19") under Kane's guidance, placing it under the Brotherhood's control. During the Scrin campaign in "Command & Conquer 3: Tiberium Wars", it is revealed that the alien species quickly became aware their premature awakening was a deliberate act by someone or something on Earth. After intercepting a transmission between Kane and the Nod commander (the player), they immediately focused their attention on Kane as the possible cause of this unprecedented incident, coming to the conclusion that the being of "Kane" somehow already existed in their master data matrix, and more disturbingly, that Kane's genetic material is unrecognizable even to the vast ancient knowledge of their space-faring species.