The London Declaration emphasizes the need for global cooperation to combat anti-Semitism. This is done by diverting the attention of the democratic world to the revival of anti-Semitism as a political force. The declaration was signed in February 2009 during a summit meeting of an inter-parliamentary coalition to combat anti-Semitism.
The test was formulated by Natan Sharansky in 2004 as tool for defining the boundaries between legitimate criticism of Israel's actions and policies an illegitimate anti-Semitic criticism. According to Sharansky, the new anti-Semitism, unlike the classic, is much more difficult to expose. The test was adopted by the State Department of the United States.