At that time the Partisans moved into western Macedonia, then under German control, as part of an Albanian puppet-state.
Using the situation the Nazis sent a plenipotentiary to meet with Ivan Mihailov, the leader of the IMRO at that time.
Mihailov was in Zagreb serving as an adviser to Ante Pavelić where he was pushing for the formation of volunteer units to operate in what is now the Greek province of Macedonia under Schutzstaffel (SS) command.
He, as the most of the right wing followers of the former IMRO, were pro-Bulgarian orientated, and did not support the existence of Communist Yugoslavia.
The Germans were becoming increasingly overwhelmed and, in a last-ditch effort, tried to establish a Macedonian puppet-state.
That was the only alternative, instead to leave it to Bulgaria, which was switching the sides.
At the evening on 3 September, Mihailov was sent to Sofia, to negotiate here with the Bulgarian authorities and his comrades.
When on 5 September, the Soviet Union declared war on Bulgaria Mihailov was transported urgently from Sofia to Skopje.

Contacts were established here with another IMRO leader, Hristo Tatarchev who was offered the position of president of the proposed state.
Negotiations were also held with the Macedonian Partisans, mediated by the Bulgarian minister of Internal Affairs Alexandar Stanishev.
In spite of all of this, Mihailov's arrival came too late and all negotiations failed.
On the next day, 6 September, Mihailov declined the plan for inability to gain support.
The failure led to ordering German withdrawal from Greece the same day, when Mihailov and his wife were also evacuated from Skopje.
Bulgaria immediately ordered its troops to prepare for withdrawal from former Yugoslavia and on 8 September, the Bulgarians changed sides and joined the Soviet Union.
This turn of the events, put the Bulgarian 5th.
Army stationed in Macedonia, in a difficult situation, surrounded by German divisions, but it fought its way back to the old borders of Bulgaria.

Nevertheless, the same day 8 September, right-wing IMRO nationalists declared independence; They had foreseen the future of this independent Macedonian state under the protectorate of the Third Reich.
The state had to have a Bulgarian character and its official language to be Bulgarian.
However, the self-proclaimed state was left "virtually defenseless" following the withdrawal of German troops.
At that time the Partisans moved into western Macedonia, then under German control, as part of an Albanian puppet-state. Using the situation the Nazis sent a plenipotentiary to meet with Ivan Mihailov, the leader of the IMRO at that time. Mihailov was in Zagreb serving as an adviser to Ante Pavelić where he was pushing for the formation of volunteer units to operate in what is now the Greek province of Macedonia under Schutzstaffel (SS) command. He, as the most of the right wing followers of the former IMRO, were pro-Bulgarian orientated, and did not support the existence of Communist Yugoslavia. The Germans were becoming increasingly overwhelmed and, in a last-ditch effort, tried to establish a Macedonian puppet-state. That was the only alternative, instead to leave it to Bulgaria, which was switching the sides. At the evening on 3 September, Mihailov was sent to Sofia, to negotiate here with the Bulgarian authorities and his comrades. When on 5 September, the Soviet Union declared war on Bulgaria Mihailov was transported urgently from Sofia to Skopje.
Contacts were established here with another IMRO leader, Hristo Tatarchev who was offered the position of president of the proposed state. Negotiations were also held with the Macedonian Partisans, mediated by the Bulgarian minister of Internal Affairs Alexandar Stanishev. In spite of all of this, Mihailov's arrival came too late and all negotiations failed. On the next day, 6 September, Mihailov declined the plan for inability to gain support. The failure led to ordering German withdrawal from Greece the same day, when Mihailov and his wife were also evacuated from Skopje. Bulgaria immediately ordered its troops to prepare for withdrawal from former Yugoslavia and on 8 September, the Bulgarians changed sides and joined the Soviet Union. This turn of the events, put the Bulgarian 5th. Army stationed in Macedonia, in a difficult situation, surrounded by German divisions, but it fought its way back to the old borders of Bulgaria.
Nevertheless, the same day 8 September, right-wing IMRO nationalists declared independence; They had foreseen the future of this independent Macedonian state under the protectorate of the Third Reich. The state had to have a Bulgarian character and its official language to be Bulgarian. However, the self-proclaimed state was left "virtually defenseless" following the withdrawal of German troops.
Independent Macedonia (1944)