Another unfortunate development was that support for AMIS from Western donor countries began to weaken just as the going got rough. The N'djamena Ceasefire Agreement had involved a formal collaboration between the AU, the UN and leading Western powers. According to Anyidoho, 'Canada was to provide aircraft and maintenance, the UK vehicles, the US camps, and the EU soldiers and police.' Donors eager to be seen to pledge money early in 2005 were reluctant to release it once the mission ran into difficulties. The US had promised $50 million to support AMIS at the donors' conference in May 2005, but didn't deliver. By November the following year, Congress had removed the funds from the 2006 Foreign Operations Appropriations Bill. Around the same time, the EU announced that salary payments would be made only on a quarterly basis and demanded proper financial accountability before releasing funds for the next quarter. When the paperwork didn't arrive, the EU suspended the provision of funds.