The United States warned today that it would use its presidency of the UN Security Council to review the performance of peacekeeping missions worldwide. <br/><br/>The Council is due to vote in the next few days on whether to extend or to cut back the 19,000-strong UN mission in the Democratic Republic of Congo.<br/><br/>US President Donald Trump made it clear in his first budget request to Congress that he hopes to cut America's funding to the United Nations.<br/><br/>US ambassador Nikki Haley will become president of the council for the month of April, and she made it plain that peacekeeping will be under the microscope.<br/>'<br/><br/><br/>