Yugoslav partisans defeated?

What if the Partisans in Yugoslavia were defeated in one of their toughest battles? Say during Case White in 1943 if they failed to cross the Neretva river or break out of their encirclement? Tito and other leaders are all killed or captured and executed in the process.
Now, with the movement beheaded and the main partisan force destroyed how do things work out in the former Yugoslav countries? Surely some resistance would remain, beyond a doubt, but significantly weaker? Could the chetniks trick the allies into giving them more support even if they are playing both sides? Who liberate Yugoslavia in the end?
Would it the be the Soviets when they arrive later in '44 or could the Western Allies move in from Italy and/or Greece somehow in large enough numbers to prop up the Chetniks to take over most of the area? How would the lack of communist resistance effect post-war Yugoslavia (if it is reformed) and if the threat is mostly gone what can be done with the troops that IOTL had to fight them? Where can they be sent?
 
The Soviets might install some of the remnant communists into power, but most likely, parties such as the Croatian Peasants' Party would need to be coopted as well. There is a high chance of 5-6 separate communist states, if the Soviets can occupy the area before the W. Allies. These would be full-on Soviet puppets, without any real independent foreign policy. As a bonus, the Yugoslavia breakup wars would not happen, and the area would be economically better off today.

Restoration of Royalist Yugoslavia hinges on Churchill demanding that Overlord happen in SE Europe, and not France. Only then can Chetniks come out as the victorious faction in the war. If Overlord happens in Normandy, then the Axis forces wreck the Chetniks, as well.
 
My question is if defeating communist partisans in 1943 let say in Neretva will eliminate communist partisan movement?
These groups were seldom “totally” eliminated.
I do not know much on yougoav communist partisan movements but didn’t they operated in more regions. Would Defeat and elimination in one refuon really mean collaps of movement or new leaders will emerge?
 
My question is if defeating communist partisans in 1943 let say in Neretva will eliminate communist partisan movement?
These groups were seldom “totally” eliminated.
I do not know much on yougoav communist partisan movements but didn’t they operated in more regions. Would Defeat and elimination in one refuon really mean collaps of movement or new leaders will emerge?
The bulk of the movement is certainly down for the count if they get hammered in one of the offensives. Tito, the charismatic leader, dies with them. There may be remnants, but they will be unable to wage war on the Axis forces with the effectiveness they have had in OTL. Soviets might occupy the areas later on, but they certainly will have a shortfall of local Communists to set up.
 
The Soviets might install some of the remnant communists into power, but most likely, parties such as the Croatian Peasants' Party would need to be coopted as well. There is a high chance of 5-6 separate communist states, if the Soviets can occupy the area before the W. Allies. These would be full-on Soviet puppets, without any real independent foreign policy. As a bonus, the Yugoslavia breakup wars would not happen, and the area would be economically better off today.

Restoration of Royalist Yugoslavia hinges on Churchill demanding that Overlord happen in SE Europe, and not France. Only then can Chetniks come out as the victorious faction in the war. If Overlord happens in Normandy, then the Axis forces wreck the Chetniks, as well.

The opposite might happen actually- if alt-Yugoslavia is fully subservient to the USSR, we might see a larger Balkan Federation incorporating Yugoslavia, Albania and Bulgaria. Tito, Dimitrov and Hoxha discussed it OTL before Tito's break with the USSR made it impossible.
 
I'm sure the partisan movement would survive but would be severely weakened. OTOH this could cause an all-out war between the Axis and the Chetniks. The partisans were their most important enemies but with them out of the picture they will have to fight the Axis and the Ustaše regime could now devote to exterminating the Chetnik movement in Croatia and Bosnia when they don't have to devote so much resources to fighting the partisans. They could also put more effort into removing the Serb population like they tried IOTL. That would of course damage their image even more and I doubt it would be possible for the Croats to switch sides. Any thoughts about this?
As for the post war period, why would the Soviets divide Yugoslavia into six separate countries? Wasn't it agreed sometime at Yalta to reunite Yugoslavia after the war? Is the Balkans confederation feasible with Tito out of the picture?
 
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