In early September, Nazi Germany briefly sought to establish a puppet state called independent Macedonia. However, the state was de facto not established due to the lack of any military support. Despite this it was declared by Macedonian right nationalists on 8 September. After Bulgaria have switched sides in the war on September 9, the Bulgarian 5th. Army stationed in Macedonia, moved back to the old borders of Bulgaria. In the early October the newly formed Bulgarian People's Army together with the Red Army reentered occupied Yugoslavia. The Germans were driven off from Vardar Macedonia in the late November by the Bulgarian Army with the help of the units of the Macedonian National Liberation Army.