CSTO

CSTO is a military alliance of the former capitalist states that were defeated in the Cold War. Despite the fact that most of them were forced to accept a new ideological formation (various forms of center-left or socialism), they did not accept defeat and are going to, at a minimum, weaken or break the Warsaw Pact and the CMEA, and at the most, destroy the Soviet Union.
The CSTO co-founders are the United States, Great Britain and France, and countries that at the time of the Washington summit are not included in the socialist camp (from Australia and New Zealand to China and Iran) can also sign the Treaty.
Unlike NATO, the former republics of the Soviet Union cannot join the CSTO.
The destruction of CSTO leads to the end of the storyline of the game and the complete victory of the USSR. 
== Features ==
CSTO member countries will be less active in opposing the USSR than NATO members (since Western countries are weakened by defeat in the Cold War), but they will use the "peaceful evolution" method - in countries bordering this bloc, the indicator of the strength of communism will gradually decrease, as a result of which they can withdraw from the Department of Internal Affairs and the CMEA, and then join the CSTO. 
== Liquidation ==
Destroying CSTO requires a regime change in its three main members - France (easiest), Great Britain (hardest) and USA (hardest). If China has entered the CSTO, then so too. is given for this One attempt (otherwise the alliance will have time to gain a foothold). The US operation requires the successful withdrawal of Britain and France (and China).
Before starting the operation, make sure that the State Reserve has a lot (more than 2000) of funds and the KGB Strength is maximum or almost maximum (it would not hurt to study the entire branch of KGB techs).
Let's start with France. It is withdrawn from the CSTO according to a mechanism similar to the withdrawal of countries from NATO - financing of the communists / intimidation of the government. When the strength of communism is more than 50 - France will leave the CSTO and the option of its inclusion in the CMEA and the Warsaw Pact will become available.
Then - Great Britain. There is a different mechanism - because. the communists there are weak and do not pose a serious threat to the authorities, the stake is being placed on the separatists of Scotland, Wales, and Northern Ireland.
After clicking on the "Provoke riots" button, a text quest of four events (three for secession referendums in Scotland, Wales and Northern Ireland, and one for special elections in England) will begin to rock the situation in England. You can: finance the separatists (the "Stability" indicator will fall, it takes a lot of money), use the KGB agents (the "Stability" indicator will fall more, but the KGB Strength will also fall) or ignore (failure of the entire operation, even if you chose this option once) . There is no need to be indignant that all three referendums did not reach the goal - this is how it was conceived. In the last event, you can: finance the opposition (Great Britain will be transformed into the Confederation of England, Scotland, Northern Ireland and Wales, and join the CMEA) or ignore (failure of the operation).
When the UK, France (and China) are withdrawn from the CSTO, it will be the turn of the United States.
After clicking on the "Provoke riots" button, a text quest of three events will begin (two for destabilization of the situation and one for snap elections) to shake the situation in the USA. You can: finance the radicals (the "Stability" indicator will fall, it takes a lot of money), use the KGB agents (the "Stability" indicator will fall more, but the KGB Strength will also fall) or ignore (failure of the entire operation, even if you chose this option once) . In the last event, you can: finance the opposition (the US will be transformed into the CSA and join the CMEA) or ignore (failure of the operation).