Since then, the SWP has affiliated with groups in various countries which comprise the International Socialist Tendency, and has been involved in a wide range of organisations, including the re-launch of the Anti Nazi League (which has evolved into Unite Against Fascism), and Globalise Resistance. They were instrumental in setting up the Stop the War Coalition an anti-war alliance formed first to oppose the invasion of Afghanistan and then the invasion of Iraq. They considered this anti-war movement to the major radicalising force in early 21st Century British politics and believe that it is a continuation of the anti-capitalist movement.