The following is an excellent link about Soviet infiltration of the anti-war movement during the Vietnam War. This was carried out through secret funding of mainly unwitting members of various anti-war movements. There were copyright restrictions on copying any part of the article, which is unfortunate because there are great excerpts from John Kerry's book, The New Soldier.
http://www.thewednesdayreport.com/Soviet-Infiltration-Anti-War-movement-VVAW.html