evidence: Gibraltar, colloquially known as The Rock or Gib, is an overseas territory of the United Kingdom at the entrance to the Mediterranean Sea. It is bordered by Spain to the north; Morocco is a short distance across the strait to the south. Gibraltar has a population of 34,000 as of 2020. [...] Strategically important for international shipping, Gibraltar was ceded to Great Britain by Spain in the 1713 Treaty of Utrecht and was formally declared a British colony in 1830. Despite it having been British longer than it was Spanish, Spain still claims sovereignty over the territory; however, Gibraltarians consider themselves British with no apparent interest in rejoining Spain: a referendum held in 2002 showed 99% of the population wished to remain British. [...] Despite being an overseas territory of the United Kingdom, traffic in Gibraltar is on the right side of the road, the same with the rest of continental Europe.