Implementation of the long term plan for the New Order was begun on June 22, 1941 with Operation Barbarossa, the invasion of the USSR. The goal of the campaign was not merely the destruction of the Soviet regime—which the Nazis considered illegitimate and criminal—but also the racial reorganization of European Russia, outlined for the Nazi elite in the Generalplan Ost ("General Plan for the East").[31] Nazi party philosopher Alfred Rosenberg (who, incidentally, protested against the inhumane policy shown toward the Slavs[32]) was the Minister for the Eastern Territories, the person nominally in charge of the project, and Heinrich Himmler, head of the SS, was assigned to implement the General Plan for the East which detailed the enslavement, expulsion, and extermination of the Baltic peoples and Slavic peoples.