Cybercord Treaty
From Transformers Wiki
The Cybercord Treaty between Earth and Cybertron allows for a permanent Autobot presence on Earth in exchange for their protecting the planet from Terrorcon attacks.
Fiction
Dreamwave Energon comics
Following four months of negotiations, the Cybercord Treaty was ratified on March 22, 2015, by the Secretary General of the United Nations and Optimus Prime. There was some public opposition to the treaty on the human side, as some who mistrusted the Transformers and believed it to be a conspiracy and the first step of an alien invasion. Multiplicity