To fully untangle the complex relationships between the diverse factions of the Hungarian underground and Allied intelligence during the last months of World War II will take years of research. But new information is emerging daily and with it have come details which offer important opportunities in the ongoing investigation of the fate of Swedish diplomat Raoul Wallenberg. Wallenberg disappeared in the Soviet Union in January 1945, after having helped to protect thousands Jews of Budapest from Nazi persecution. Soviet era claims that Wallenberg had died of a heart attack in a Moscow prison in July1947 or that he was executed have never been fully substantiated.