Senior U.S. officials have been quietly dispatched to the capitals of key member nations of the U.N. Security Council, including Mexico, Cameroon, Angola and Guinea, to warn leaders to vote with the United States on Iraq. The Bush administration is seeking to pass a new U.N. Security Council resolution, which will pave the way for a U.S. attack on Iraq. The U.S., Britain and possibly Spain are planning to introduce the resolution early this week. One Mexican diplomat told the Associated Press, “They actually told us any country that doesn’t go along with us will be paying a very heavy price.” In 1991, the U.S. withdrew $24 million in annual aid from Yemen after it voted against authorizing the Gulf War.