(S (S (PP (IN In) (NP (BASENP (NN addition)) (PP (TO to) (NP (BASENP (DT the) (NN reduction)) (PP (IN of) (BASENP (JJ nuclear) (NNS weapons))))))) (COMMA ,) (S (NP (BASENP (NNP Obama) (POS 's)) (NN review)) (VP (MD will) (VP (ADVP (RB also)) (VP (VP (VP (VB adjust) (NP (BASENP (DT the) (NNP United) (NNPS States) (POS ')) (NN defense))) (PP (IN towards) (NP (BASENP (JJ non-nuclear) (NNS options)) (COMMA ,) (PP (VBG including) (BASENP (NN missile) (NN defense)))))) (COMMA ,) (PP (ADVP (RB largely)) (PP (IN within) (S (VP (VP (VBG striking) (NP (BASENP (NN distance)) (PP (IN of) (BASENP (DT the) (NNP Persian) (NNP Gulf))))) (S (VP (TO to) (VP (VB reduce) (NP (BASENP (DT the) (NN threat)) (VP (VBN posed) (PP (IN by) (NP (BASENP (NNS countries)) (PP (IN such) (PP (IN as) (BASENP (NNP Iran)))))))))))))))))))) (PERIOD .))