Operation Panzerfaust
On 15 October, the regent of Hungary, Miklós Horthy, announced that Hungary had left the war and attempted to have an armistice with the Soviet Union. In response, the Germans launched Operation Panzerfaust, arrested Horthy and installed Ferenc Szálasi, the leader of the fascist Arrow Cross Party, as leader of Hungary. The country would continue to fight the Red Army for the Axis until the end of the war.