rtokens: U.S. President Bill Clinton has authorised the repositioning of U.S. firepower in the Gulf region in response to the Iraqi attacks .
pos: DT NNP NN IN NNP VBD DT NNP , VBN IN JJ NNS , JJ NN CC NNS VBD VBN NN IN DT JJ JJ JJ NN IN NNP IN VBG IN NNP .
tokens: A U.N. official in Baghdad said the KDP , backed by Iraqi tanks , heavy artillery and helicopters had taken control of the main northern Iraqi city of Arbil after fighting on Saturday .
ltokens: Nerweyi said he did not know if there were any casualties .