Viridian City

Viridian City is from the Pokémon canon. Home of the Viridian Gym, it's an area thriving with trainers and Pokémon alike. However, when the worlds merged, the Gym's Leader, Giovanni, found it an ideal opportunity to expand his enterprises and "rule" the city through Team Rocket. With funding from an unknown third party (Secretly the Prime Minster of London himself, Netami Kihaku), Team Rocket took over complete occupation of Viridian with the gym as their headquarters.

Slate and Red began the fight for Viridian City (before vanishing), and Skie(Fang) / Prime Minister Netami(disguised as another) finished the events by defeating Giovanni and driving him out of the city (although it destroyed the gym in the process). Upon their victory, a small force of soldiers from London arrived with perfect timing to help drive the remaining Rocket Grunts out of the city. Or so it seemed.

Viridian City thus joined underneath the "banner" of the London-Tokyo Union, and Netami Kihaku's Control.

Viridian Gym
Has now been rebuilt with community funds and a grant from the LTU. The current Gym Leader is a community member who stepped up to the plate and led the rebuilding. He uses mostly ground/mix type Pokémon, and gives out an Earth Badge to those that defeat him in a Pokémon Battle. He is secretly a member of Team Rocket, looking to sow the seeds for Giovanni's return.