The United Kingdom is a country in Europe. It was first featured in the Season Four episode, "Pip". In the Season Eleven episode "The Snuke", the United Kingdom military attempted to invade the United States.
In "The Snuke", the British attempt to invade the United States to deny America its independence, however they fail when United States Air Force jets fly in and destroy the Royal Navy. Queen Elizabeth II then commits suicide.
The British military are portrayed as extremely outdated and still use old wooden naval vessels from the past equipped with cannons. The Army is shown as still equipped with muskets and wearing the standard 'red coat' uniform. However, modern technology such as mobile phones are still used by the commander of the fleet.
Britons are also seen as knowing all about castles, legends, and myths. Their clothing is archaic, including flat caps, Victorian style bolas ties, and red jackets.
- Britain's rivalry with France is referred to in the episode "Conjoined Fetus Lady", when Pip Pirrup is pressured into playing dodgeball.
- In Goin' Down to South Park, it's stated that South Park is as big if not bigger hit in Britain than it is in the United States.