It's 1919 Austria April 17, unlike in our history the communist coup in Austria, sponsored by Béla Kun's Hungarian Soviet Republic, is successful. However the Austrian social democrats only give up power under the condition that they enter a coalition with the communists, similar to the social democrats in Hungary so that the social democrats have the majority, but the communists hold the important Commission (ministries). After setting up the communist government, the Austrian Soviet Republic is officially declared.
Due to the collapse of the Hungarian frontline against Romania on April 18 the Austrian Red army arriving on the 20th, is unable to help their Hungarian comrades. But while this is happening, the Czechoslovaks invade a significant portion of northern/northeastern Hungary and northern Austria up to the Danube by March 3. This causes the Austrians to retreat from Hungary and prepare a counter-attack, along with the Hungarians.
This counter-attack starts on March 6, on this day northern Linz(Aus), northern Wien(Aus) and Krems an der Donau(Aus) are liberated. Salgótarján(Hun) and Dunaszerdahely(Hun) is recaptured on the 7th. Miskolc(Hun), Balassagyarmat(Hun), Sárospatak(Hun) and Freistadt(Aus) are liberated on the 9th. On the 10th Zwettil(Aus), Hollabrunn(Aus), Kazincbarcika(Hun), Érsekújvár(Hun) and Sátoraljaújhely(Hun) are the next to be recaptured. Ózd(Hun) is recaptured on the 11th along with Horn(Aus).
The rest of the important battles are Ceske Budejovice(Aus) on the 18th, Kosice/Kassa(Hun) and Nyitra(Hun) on the 20th, Presov/Eperjes(Hun) on the 22nd, Brno(Aus) on the 25th, Zlina/Zsolna(Hun), and Prague on the 30th. After the capture of Prague, Czechoslovakia capitulates, but fighting doesn't end. The last Czechoslovak forces surrender on June 21. Austria seizes the Sudetenland and puppets the Czechoslovak Soviet Republic, but the Ruthenian Soviet Republic becomes Hungary's puppet.
The crossing of the Tisza occurs on June 26. Debrecen is captured on August 2, Cluj/Kolozsvár falls on the 21st, and Brasov on September 18. Along with this, the Russians invade Besssarabia on the June 28 and reach Chisnau on August 1, and Iasi on the August 20. Bucharest is captured on October 7, all three armies fighting for the Romanian capital. Romania and Moldova become SSRs of Soviet Russia, Hungary seizes Kolozsvár and Székelyland, and puppets the Transylvanian Soviet Republic
Between October 10-24 a smaller war breaks out between Yugoslavia, Austria and Hungary. The result of this war is that Yugoslavia gains control of the Banat, while Hungary gains the Drávaköz, and Muraköz/Prekmurje. Austria also gains control of the german-majority northern Slovenia.
When in 1922 the USSR is declared the Austrians, Hungarians and their puppets don't join. Instead they declare the Danubian Federation of Socialist Soviet Republics (DFSSR). Capital: Budapest and Wien, Currency: Danubian Krone/Korona (about 2-3 USD).
When Stalin comes to power in the USSR, the DFSSR's leadership opposes his policies. The communists oppose him because of Lenin's testament and Stalin's unleninist policies, the social democrats oppose him because of dictatoric and tyrannic policies.
What happens next, I leave it to the comments.
Due to the collapse of the Hungarian frontline against Romania on April 18 the Austrian Red army arriving on the 20th, is unable to help their Hungarian comrades. But while this is happening, the Czechoslovaks invade a significant portion of northern/northeastern Hungary and northern Austria up to the Danube by March 3. This causes the Austrians to retreat from Hungary and prepare a counter-attack, along with the Hungarians.
This counter-attack starts on March 6, on this day northern Linz(Aus), northern Wien(Aus) and Krems an der Donau(Aus) are liberated. Salgótarján(Hun) and Dunaszerdahely(Hun) is recaptured on the 7th. Miskolc(Hun), Balassagyarmat(Hun), Sárospatak(Hun) and Freistadt(Aus) are liberated on the 9th. On the 10th Zwettil(Aus), Hollabrunn(Aus), Kazincbarcika(Hun), Érsekújvár(Hun) and Sátoraljaújhely(Hun) are the next to be recaptured. Ózd(Hun) is recaptured on the 11th along with Horn(Aus).
The rest of the important battles are Ceske Budejovice(Aus) on the 18th, Kosice/Kassa(Hun) and Nyitra(Hun) on the 20th, Presov/Eperjes(Hun) on the 22nd, Brno(Aus) on the 25th, Zlina/Zsolna(Hun), and Prague on the 30th. After the capture of Prague, Czechoslovakia capitulates, but fighting doesn't end. The last Czechoslovak forces surrender on June 21. Austria seizes the Sudetenland and puppets the Czechoslovak Soviet Republic, but the Ruthenian Soviet Republic becomes Hungary's puppet.
The crossing of the Tisza occurs on June 26. Debrecen is captured on August 2, Cluj/Kolozsvár falls on the 21st, and Brasov on September 18. Along with this, the Russians invade Besssarabia on the June 28 and reach Chisnau on August 1, and Iasi on the August 20. Bucharest is captured on October 7, all three armies fighting for the Romanian capital. Romania and Moldova become SSRs of Soviet Russia, Hungary seizes Kolozsvár and Székelyland, and puppets the Transylvanian Soviet Republic
Between October 10-24 a smaller war breaks out between Yugoslavia, Austria and Hungary. The result of this war is that Yugoslavia gains control of the Banat, while Hungary gains the Drávaköz, and Muraköz/Prekmurje. Austria also gains control of the german-majority northern Slovenia.
When in 1922 the USSR is declared the Austrians, Hungarians and their puppets don't join. Instead they declare the Danubian Federation of Socialist Soviet Republics (DFSSR). Capital: Budapest and Wien, Currency: Danubian Krone/Korona (about 2-3 USD).
When Stalin comes to power in the USSR, the DFSSR's leadership opposes his policies. The communists oppose him because of Lenin's testament and Stalin's unleninist policies, the social democrats oppose him because of dictatoric and tyrannic policies.
What happens next, I leave it to the comments.