Butler goes green
Butler made 35 appearances for Pool last season in his second spell at the club. In his first spell at the club from 96 to 99 he made 100 appearances.
He then moved on to Port Vale, West Broom and then Bristol City. He made 97 league starts for the Robbins before moving back to Bloomfield Road.
Butler, 33, has been handed a one year contract at Forrest Green.