in changes to base porting arrangements announced in november 2017, hm ships "argyll", "monmouth" and "montrose" will join the portsmouth flotilla; hm ships "westminster", "richmond", "kent" and "st albans" will move in the opposite direction. richmond becomes a devonport ship on completion of her refit. st albans moved to devonport in july 2019 in preparation for her major refit.