Hitler bumped off his "Communists", the SA, once they were no longer useful to him.
Above: Soviet Foreign Minister Molotov signs the Nazi-Soviet Non-aggression Pact while German Foreign Minister Von Ribbentrop and Soviet leader Stalin look on under a portrait of Lenin, August 23, 1939. News of the Pact stunned the world and paved the way for the beginning of World War Two with Hitler assured the Germans would not have to fight a war on two fronts.
http://www.historyplace.com/worldwar2/timeline/pact.htm
___________________________________________________
"...at the time of the Nazi-Soviet Pact, the Communists suddenly transformed the 'Anti-Nazi League' into the "Hollywood Peace Forum," calling for American neutrality and using the slogan 'Let's Skip the Next War.'..."
--Ronald Radosh, from his book, Red Star Over Hollywood: The Film Colony's Long Romance With the Left
http://www.capmag.com/article.asp?ID=4251
___________________________________________________
"[Pete] Seeger was antiwar during the period of the Nazi-Soviet Pact; pro-war after the Soviet Union was the ally of the United States; and anti-war during the years of the Cold War and Vietnam." --Ronald Radosh (former communist)
http://www.frontpagemag.com/Articles/Read.aspx?GUID=01133F31-CE9A-40BC-B797-47CBB0023EF4