The best way to liberate the Balkans will be to defeat Germany which has to be done anyway.
The difficulty is getting there before the Soviets do.
We entered the war to defend Poland, and it was only Swedish & Danish neutrality that stopped us defending Finland.
If someone gave Churchill the idea about moving the Iron Curtain East, he’d probably agree all the more with “fringe operations.”
To that end, the only ways to get to Poland & Czechoslovakia is up through Italy, or the Balkans. Neither have good territory, but possibly the Partisans would make Yugoslavia easier. On the other hand, logistics would be worse. Especially if the Adriatic was under Luftwaffe interdiction.
The other way is “Fortitude North”; to go back into Narvik and then across into Finland - the way the Germans retreated in the Lapland War. Again, the Finns would be happy to become co-belligerent. (Especially if they get status quo ante bellum borders). But apart from making the North Cape passage easier, flushing out the Tirpitz, Scharnhorst & Gneisenau, and cutting off German iron ore access, it doesn’t offer much more. The Commonwealth & Finns could potentially at a pinch liberate Estonia, but anything more than that I think is effectively impossible, despite CanKiwi’s enjoyable & sadly frozen TL.
We know that the Bulgarians, Romanians and Hungarians all tried to switch side as the Red Army approached. CIGS probably couldn’t forecast this, but after Stalingrad the writing is on the wall.
However, it probably doesn’t take too much analysis to realise that
1. The Red Army won’t get to the channel ports
2. Highly unlikely to get to Denmark*
3. Chiang Kai-Shek & the KMT is an even bigger black hole**
All this makes Brooke’s life harder ITL.
* A direct invasion of Denmark is also unwise as the Germans could simply run trains full of panzer divisions there. The same problem can be said for France, which the unblooded Americans will be pushing for. There are some islands off the Danish, German and Dutch coasts, however, where that advantage would be mitigated…
**And unless he can be persuaded to extend the Hong Kong lease, it doesn’t seem that the Far East offers much benefits for Britain, the Commonwealth or Empire. The Japs can slowly starve without DEI oil; the RN is quite good at blockading given all the practice they’ve had.
Finally, I motion for any good long analysis posts be named “RRs” after their developer.
EDIT: The Americans, with their good relations with Vichy, might be able to pull off Dragoon after the invasion of Sicily, and convince Petain to change sides. That could have significant ramifications if possible. It’s also likely be easier than Omaha, Utah, & the Bocage.