rtokens: Most of the Marines are on three ships in the Tarawa Amphibious Readiness Group .
pos: DT CD NNP NN NNS RB IN DT NNP VBP IN CD NNS CC NNPS , CD NNP NNS VBN RB IN NNP NNP CC CD NNP NNS IN DT NN IN JJ NNS .
tokens: The 23,000 U.S. military people already in the Gulf consist of 15,000 sailors and Marines , 6,000 U.S. servicemen based primarily in Saudi Arabia and 2,000 U.S. troops in the area for military exercises .
ltokens: The expeditionary force would include nearly 1,000 Air Force personnel in ground and support crews , they said .