In 2067, Japan sealed itself off from the world after international policy set strict limits on the use of robotic technology.
Vexille is also a rare example of an action / science fiction anime film where the members of the United States military who perform dangerous clandestine operations are portrayed as the good guys.
Universal Pictures announced their intention to create a live-action remake of Vexille in 2013, but so far these plans haven’t materialized.