After the end of the Cold War, there was a brief period of harmony on the Security Council. The period from 31 May 1990 to 11 May 1993 was the longest period in the history of the UN without the use of the veto. The number of resolutions passed each year also increased. Usage of the veto picked up in the early 21st century, most notably due to the Syrian Civil War. Since 1992, Russia has been the most frequent user of the veto, followed by the United States and China. France and the United Kingdom have not used the veto since 1989.