To be fair GUEST, American folk rock was an early influence in Britain. Fairport Convention played a lot of thier early music in the Byrds and Jefferson Airplane style.Their early albums also included a few Dylan songs.It was playing that style which gave them the idea to concentrate on a purely 'British' type of folk rock.From them flourished a whole genre of music for a few years.

Folk Rock never caused any wars though (A few punch ups maybe........)