The Clash were part of the punk wave of the 70's and 80's. What country were they from?

Explanation

The Clash was a British band formed in 1976. The band was part of the punk movement in the 70's and 80's. They were radically different in musical compared with the later Britpop. Their debut album is called "The Clash", but they are best known for their third record "London Calling" from 1979, which is considered one of the best albums of the 1980's. The band split up in 1985.