Operation: Rabbit Hole was an infamous attempted Gascot counter-mission taking place on an indeterminate date during the "wonderland" series. Initially portrayed in the video "how long is forever?", the mission is notable for apparently being a catalyst in the portrayal of Gascot, both in and out of canonic universe.
After the incident seen in the rabbit hole (for which the operation is named), cameras are used to serve as an experimental deterrent for Gascot. The end result is over 6,000 deaths from at least 13 different compounds.
It is the most violent recorded Gascot incident to date.