– USNI News – The Arleigh Burke-class guided-missile destroyer USS Porter (DDG-78) arrived in Spain on Thursday to being its ballistic missile defense mission. Porter will join USS Donald Cook (DDG-75) and USS Ross (DDG-71) in the forward-deployed naval force at Naval Station Rota to carry out the European Phased Adaptive Approach to BMD. USS Carney (DDG-64) will arrive later this year.