U.S. SENATE TEAM WANTS MULTINATIONAL GULF FORCE The leaders of a U.S. Senate team probing American defense strategy in the MidEast Gulf said they favored a multinational force to keep oil flowing through the waterway. Sen. John Glenn and John Warner, in Kuwait as part of a Gulf Arab tour, said at a news conference that top officials in the area appeared ready to discuss extra facilities needed if the U.S. upgraded its defense role. The Senate team next heads for the United Arab Emirates, their last stop on a fact-finding mission prompted by Reagan administration plans to let half of Kuwait's 22-tanker fleet fly the U.S. flag. Glenn and Warner said the U.S., Britain and France, should explore the possibility of a unified Gulf force. "The American ships, the British ships, the French ships now talk to each other and all we've got to do is formalize this arrangement," Warner said. Glenn said a multinational force could be effectively deployed within 24 hours of a decision. Glenn voiced a preference for a United Nations multinational force, or failing that, an American, British, French force with cooperation from the Gulf Arab states. Warner voiced concern that the Soviet Union might use the situation in the Gulf to raise its presence. "And, unequivocally, all GCC states we have talked with, have said that would not be in the interests of the Arabian peninsula."