Key Figures In Austrian CrisisAmong men who figured prominently in the rapid-fire events which ended when Chancellor Schuschmgg resigned were, left to right above: Heinrich Himmler, chief of Germany’s dread Gestapo, or secret police, who entered Austria to 4 aid” the new Nazi government; President Wilhelm Miklas, who yielded to Hitler’s demands when confronted by threat of invasion; Gen. Hans Muff, German military - attache m Vienna, who delivered Der Fuehrer’s ultimatum to Miklas; and Gen. Alfred Kraus, retired World War hero, who inarched through Vienna at the head of 50,000 shouting Nazis and hoisted the swastika at the chancellery.