U.S. peacekeeping payments in effect since 1995, which continued to generate additional UN arrears. Of the final $244 million under Helms-Biden, $30 million was payable to the UN and $214 million to other international organizations. In February 2001, Congress authorized the second Helms-Biden payment, but because of an eight-month delay in appropriations, the U.N. chose not to re-elect the United States to the United Nations Commission on Human Rights. Following the September 11 attacks, on 6 October 2001, Bush signed the second Helms-Biden appropriation into law and in March 2002, the U.S. was voted back onto the commission. In October 2002, Congress lifted the 25% cap on peacekeeping assessments and in November 2002, the U.S. made the final Helms-Biden appropriation. The Iraq War, Saddam Hussein, and WMDs Further conflict between the U.S. and some UN members arose in 2002 and 2003 over the issue of Iraq. George W. Bush maintained that Iraqi President Saddam Hussein had not fulfilled the obligations he had entered into at the end of the Gulf War in 1991, namely to rid Iraq of all weapons of mass destruction (WMDs) and to renounce their further use. A series of inspections by the IAEA failed to find conclusive evidence that proved allegations that Iraq was continuing to develop or harbour such weapons. The findings were conveyed by the leading weapons inspector, Hans Blix, who noted Iraq's failure to cooperate with the inspections on several counts. The U.S. replied by saying that the responsibility of proof of disarmament was upon Iraq, not on the UN or the U.S. In November 2002, the United Nations Security Council adopted Resolution 1441, giving Iraq an ultimatum to co-operate in disarmament within an unstated timeframe of a few months. However, in March 2003, the U.S., supported by fifty countries (including the United Kingdom, Spain, Australia, the Czech Republic, Denmark, the Netherlands and Poland) which the Bush administration referred to as the "coalition of the willing" launched military operations against Iraq. On April 9, Saddam Hussein's regime was overthrown and Iraq was placed under occupation, marked by the fall of Baghdad. The U.S. argued that this action was authorized by Resolution 1441, since Iraq had failed to comply by co-operating fully in the identification and destruction of its weapons programs, and since Resolution 1441 promised 'serious consequences' for lack of full compliance and achievement of its objective. Other countries, led by France, Germany