Team Wartortle
Team Wartortle is a group of firefighting Wartortle based in the Orange Islands. They are lead by Captain Aiden.
They made their first appearance in The Pokémon Water War. While on an island, a fire broke out at an old warehouse. Ash and Misty had their Pokémon attempt to put the fire out, but it did little to stop the fire. When Team Wartortle arrived, they quickly put the fire out. However, the leader and Ash's Squirtle soon developed a rivalry. Squirtle wanted to prove to the head Wartortle that it was just as strong as its evolved form. It proved it when the leader and Squirtle worked together to save a little boy from a burning building. It seemed that after the rescue, the rivalry was settled.
However, it started back up again in The Fire-ing Squad. During a Pokémon firefighting competition, Squirtle was reunited with not only Team Wartortle, but also its old friends from the Squirtle Squad. Team Wartortle believed they were going to be victorious in the competition, but once again Squirtle refused to be beaten by its evolved form. With its help, the Squirtle Squad won the competition.
Team Wartortle hasn't been heard from since Johto, and it is unknown what happened to them afterwards.
For more information on this Pokémon's species, see Wartortle.