Mod «Cold War Iron Curtain: A World Divided» for Hearts of Iron 4 (v1.10.1 - 1.10.4)


This mod adds a Cold War scenario into Hearts or Iron IV. Beginning 1949 and planned to end around 2008, with content currently spanning to 1984. The updated version represents the culmination of over a year of work from countless developers to bring you the most comprehensive Cold War experiences available for both Hearts of Iron and in strategy gaming as a whole.


Focus Trees Over 100 New Focus Trees


  • US Focus Trees Covering 1949-1980
  • Soviet Focus Trees Covering 1949-1982
  • PRC Focus Trees Covering 1949-1970
  • Generic Focus Trees for the 1950s, 1960s and 1970s
  • and many many more....

Other Features

  • New Countries and States for Colonies, Rebellions,...
  • Events for well known Cold War Uprisings
  • Completely reworked Armor Tech Tree
  • Completely reworked Air Tech Tree
  • Completely reworked Infantry Tech Tree
  • Completely reworked Navy Tech Tree
  • Completely reworked Industry Tech Tree
  • Completely reworked Electronics Tech Tree
  • Weapons of Mass Destruction Tech Tree
  • Helicopters and even a Space tree!
  • A custom Nuking Mechanic
  • A DEFCON System for USA, Soviets and PRC
  • An Electricity System
  • A Food System
  • A Policy System
  • Economic Systems
  • Resource Consumption Mechanics
  • And Many more for you to discover...


  • Democratic Ideologies: Conservatism, Centrism, Socialism, Classical Liberalism, Progressivism, Liberal Conservatism, Christian Democracy, Social Liberalism, Social Democracy
  • Communist Ideologies: Marxism-Leninism, Maoism, Revolutionary Socialism
  • Authoritarian Ideologies: Reactionary, Monarchism, Nationalism, Third Positionism
  • Islamic Ideologies: Islamism, Shia Islamism, Salafism

Mod checked on game version: 1.10.1 , 1.10.2 , 1.10.3 , 1.10.4

  • Fixed French 1956 Election Spam
  • Fixed Missing Localization for a PBSUCCESS Event
  • Fixed South Vietnam Tree Being Used in the 60s
  • Fixed Brezhnev Focus Glitch
  • Fixed Albania Not Becoming Independent Upon Soviet-Albanian Split
  • Fixed Albanian Subversion Variable Checks and Now Properly Makes Monarchist Albania Independent
  • Fixed the Iranian Revolution Not Firing Properly
  • Fixed East African Federation not having cores on all it's states when it forms and made its color less similar to it's neighbors Somalia and the DRC
  • Made Khorloogiin Choibalsan a field marshal for Mongolia (and of course when he dies he stops being one)
  • Fix: remove idea on german reunification
  • New Portraits by HiGuys: Dom Mintoff (MLT), Ludwig Erhard (WGR)
  • Fixed too long event text
  • Fixed wrong party popularity in 1949 NZL start
  • Prevented SOV focus from freeing Berlin after reunification
  • New BRA, MAL, ETH, INO and LEB models by Torn
  • Fixed another Suez issue, Telescope part 2
  • Fixed portraits for PDG tree
  • Various New South Korean Portraits
  • AI should now produce up to date planes
  • Plane stats rebalanced
  • Air combat values tweaked to better support the new plane stats
  • Complete overhaul of the British air GFX/localization
  • British air OOB
  • Refined Soviet OOB
  • Refined Indochina War OOB
  • Refined US OOB
  • UK tank/IFV tree GFX/localization
  • Improved Soviet Heavy air tree GFX/localization
  • Improved US Navy planes GFX/localization
  • West Germany Air Tree GFX
  • Unique namelist for UK Squadrons
  • Fixed various issues with PCF (Marxist-Leninist) France's decolonization of Africa.
  • PRC's Focus 'Lobby Asiatic Countries For Recognition' now also makes the PRC a Semi-Recognized state
  • Added news events for the three Karl Marx Years for the DDR with the first one renaming Chemnitz to Karl-Marx-Stadt
  • Portrait for Kenyan General Archibald J. A. Wavell (2nd Earl)

Version 06.03.21 for Hearts of Iron 4 (v1.10.1 - 1.10.4)

  • OOB fixes for players without MtG: reenabled all disabled MtG oob (FRA, ISR, COL, POR, URG, SIA and TUR) and also a few fixes for naval rewards in focuses
  • Made AI want to change Nuclear law to Armed
  • Historical US division name
  • US Divisions now have historical composition and equipment
  • Soviet Divisions now have historical composition and equipment
  • UK divisions now have historical equipment
  • French divisions now have historical equipment
  • North/South Korean Divisions now have historical equipment
  • US APC/IFV GFX rework
  • Soviet light planes tree GFX rework
  • US Attack helicopter tree GFX rework
  • US heavy planes tree GFX rework
  • Communist China Light planes tree GFX rework
  • US strategic bomber groups now have a number historical for the time period. 11 groups of 45 bombers.
  • US strategic bomber groups moved to their respective bomber bases: Fairchild, WA. Mountain Home, ID. Ellsworth, SD. Carswell, TX.
  • US airwings now have realistic size and equipment
  • Unique namelist for US airwings
  • Changed starting techs for USA/SOV, should be more historical now
  • US light air tree localisation/GFX rework
  • South Korean armor localisation/GFX rework
  • UK armor localisation/GFX improvements
  • minor corrections in the kenyan 60s tree
  • Country News window can now fit 4 buttons
  • Fix: Israel focus using wrong idea
  • Readded all the missing Australian VP names
  • SOV/USA/ENG artillery and SOV/USA self-propelled artillery models by Torn
  • VIN/CHI tanks and sp-art by Torn
  • Improved tooltips for State Development Upgrade Decisions (it now includes name of states that can be upgraded, and cost to upgrade each)
  • Fix: State Development Upgrade decision failing in some special cases (probably more to be found)
  • Added generic portrait for leaders without a portrait source (can't find a picture online)
  • Many broken portraits fixed (existed but not being used properly)
  • New Portraits by Higuys: Cheddi jagan (Guyana), Mohammed V (Morocco), Salote Tupou III (Tonga), Fouad Chehab (Lebanon)
  • New portrait by Kreunz: Patrick John (Dominica)
  • New portraits by ParnJT: Dap Chhuon (Cambodia), Seewoosagur Ramgoolam (Mauritius), Praphas_Charusathien (Thailand), Ronald Webster (Anguilla)
  • New ENG 60s descriptions by murph
  • Fix: Six Days War not triggering correctly sometimes
  • ESC key now works on Research Complete popup (making it open research screen)
  • Fix: upgrading a state to developed now works as intended
  • Changed US focus reward (Strategic Air Command in the Jet Age) to no longer give a pre-existing tech bonus
  • Fix: incorrect SOV labor policy in 1960 start
  • WMD: fixed a few scoping issues in nuke news events
  • Made WGR generals be loaded by Focus 'West German Army Control'
  • New Goa and Macau event texts by Boski
  • Can no longer apply to join NATO if at war with them (any war for that matter)
  • Changed Costa Rica's leader since Teodoro Picardo stepped down in 1948
  • Moved Panama/Suez canal icon in state view a bit to avoid clashing with radiation icon
  • Gave missing names to Tonga to avoid blank name when joining a war
  • New KMT victory tree descriptions by JoeSolo22


Version 27.02.21 for Hearts of Iron 4 (v1.10.1 - 1.10.4)

  • Fixed SOV and PRC stealing KPA puppet by focus
  • German reunification via Stalin Notes now also annexes Free Berlin and removes idea Republikflucht
  • Fixed incorrect event text (The Fall of Seoul event desc)
  • Added Radiation icon to State view (next to Chemical Weapons button) - only visible if any radiation present in state
  • Activated after nuke script for states nuked: reduces state development, kills population and damages/destroys buildings (based on atomic_weapons_armament tech lvl)
  • Adapted Cuba Missile Crisis events to use WMD scripts
  • Added Missile Range info to WMD tab
  • New portraits by HiGuys: Carlos Castillo Armas (Guatemala), Mohammad Yusuf (Afghanistan)
  • Fixed 50s_KEN focus issue where independence wasn't actually granted
  • Fixed Khrushchev tree not swapping ideas correctly
  • High-Speed Jet Interceptors can now perform Pilot Exercises mission
  • Somalian division no longer starts in Germany
  • New Korean Agency logo by ADMIRAL360
  • New ROC tree descriptions by JoeSolo22
  • New ENG 50s focus descriptions by BloodHawk
  • Added missing MLA core to Perak
  • Fixed ITA 60s tree not loading as intended
  • Prevented Six Days War from triggering if Egypt no longer exists
  • Moved Jincheng VP to its correct place
  • Fixed Second Malayan Emergency 1967
  • NGA, SIA and MEX models and some fixes by Torn
  • PRC can no longer flee to Manchuria after losing civil war
  • Fixed KMT_1950s_Victory focus not removing banditry idea
  • Improved missile ranges for WMD calculations
  • Added the Upper Volta revolutions till Sankara
  • Fixed the Burmese coup of 1962 not working
  • Fixed SAF elections not changing the party
  • Fixed Canadian elections
  • Fixed Nicaraguan 1950 election event
  • Fixed Paraguay wrong encoding
  • Added creation of South Yemen
  • Fixed Zanzibar Revolution
  • Fixed Burma Portrait
  • Fixed Nigeria's 50s focus tree loading in the 60s
  • Tweaked Kenyan Generals and added flavor events for them
  • added fail-safe for Moroccan Independence


Version 15.02.21 for Hearts of Iron 4 (v1.10.1 - 1.10.4)

New or Reworked Focus Trees

  • America 1950s Rework for Military/CIA/Foreign Policy
  • Thomas Dewey 1952 and 1956 (R)
  • Democratic Eisenhower 1952 and 1956 (D)
  • Richard Nixon 1956 (R)
  • Earl Warren 1952 and 1956 (Republican - Progressive)
  • Averell Harriman 1952, 1956 and 1960 (D)
  • Douglas MacArthur 1952 and 1956 (R)
  • Harold Stassen 1952 and 1956 (R)
  • Charles Halleck 1956 and 1960 (R)
  • Richard Russell 1952 and 1956 (Dixiecrat)
  • Joseph Martin 1956 and 1960 (R)
  • Beria/Malenkov Path Added for Post Stalin Death
  • Communist Greece Focus Tree
  • Morocco 1950s
  • Nigeria 1950s
  • Sweden 1950s
  • Republic of China Victory Tree
  • North Korea 1950s
  • Britain 1950s (Only Historical and Bevan Routes atm, more will be added later)
  • East Germany 1950s Economic Branch Remade Completely
  • East Germany 1960s Rework
  • Various Fixes and QOL Improvements in Older Trees

General Changes and Mechanics

  • Various Fixes and Improvements to the Mechanics
  • New World Tension GUI
  • WMD Rework
  • UN Mechanic Phase 1
  • Culture and Religion Mechanics Phase 1
  • Space Race Phase 1
  • UI Rework
  • New News Event UI and all News Event Pics Redone
  • Hundreds of New Events
  • New Event Chain for the Red Scare and McCarthyism
  • New Event Chain for the Stalin Notes
  • New Event Chain for handling the dismissal of Douglas MacArthur in the Korean War
  • Various New Potential 1950s Conflicts tied to the 1950s USA Rework
  • Suez Rework V3
  • New Congress UI for America
  • New Warlord GUI for Victorious Republic of China
  • New Economic GUIs
  • Reworked the Political Window to Replace Parliament with Policies
  • Arab League GUI
  • Super Event Rework (and some animated Super Events)
  • Influence Rework + Miscellaneous Fixes
  • Lots of New 3d Models


  • Some New Space Techs
  • Various Fixes and Improvements etc


  • Near Total Map Rework
  • Hundreds of New States and Tons of New Provinces, especially in Africa and Asia
  • Population Data has been calculated for all inhabited states for all bookmarks to try to be accurate
  • Ethnic Data added to all inhabited states
  • Religious Data added to all inhabited states


Version 01.08.20 for Hearts of Iron 4 (v1.9.3)

  • Fixed event spam for racial related problems.


Version 11.06.20 for Hearts of Iron 4 (v1.9.3)

  • Various improvements and fixes.


Version 05.06.20 for Hearts of Iron 4 (v1.9.3)

  • Fixed Issue with Vietnam/Bulgarian Trees Regarding Locked Focuses
  • Fixed Yugoslavia Bugs Regarding Joining NATO
  • More Korean Ceasefire Work
  • Other Minor Fixes
  • Actually fixed chezoslovakia
  • Bunch of Pakistan fixes
  • Fixed broken Cuban tree
  • Fixed broken Yugo national spirit


Version 02.06.20 for Hearts of Iron 4 (v1.9.2)

  • Updated South Korean Unit Names to be more accurate
  • Foxed Various Invalid Event Errors
  • Fixed French Errors
  • Fixed Issue with Korean Ceasefire
  • Korean Ceasefire Timer Now Begins from the start of the war
  • Naval Speeds have been fixed
  • Various UI Fixes
  • Yemen Focus Tree is now Playable
  • Added 6 Missing Yemen Events
  • Minor Various Balance Work
  • Fixed reported finnish bugs
  • Added some missing portraits
  • Fixed roc gaining provinces in prc after civil war
  • Buffed balkan federation decisions
  • Added missing yugoslavian female names
  • Fixed Iranian 50s tree being covered by continous focuses box
  • Tech loc organization and fixes
  • Fixed Portugal Carnation Revolution Events
  • Fixed broken czechoslovakian tree
  • Fixed pinochet events


Version 31.05.20 for Hearts of Iron 4 (v1.9.2)


How to install mod?

To install the mod for the game Hearts of Iron 4, unpack the contents of the archive to the folder Documents\Paradox Interactive\Hearts of Iron IV\mod and enable the modification in the launcher.

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please i need to Cold War Iron Curtain: A World Divided v1.90 because i can’t find v1.91 and v1.92 


it doesn't exist on this website, besides these two versions can work on 1.9 too

Mohammad DT

I think iran's focus tree isn't balanced in this mod.


e só pra min ,ou o de vocês também esta bugado.
tipo ,a tela cortada pela metade, as vezes não carrega . eu  não consigo acessar a parte politica do meu pais .
e por ai vai, se alguém puder me ajudar, entre em conato por favor 


please v1.01.2


Please i need 1.10.1


Please  1.10.1

Neville Chamberlain

Pls update to 1.101

bla bla

1.10.* pls update it 


Can you update to v1.10.3 ?


When i select a country, no matter what's the scenario,it's always crashing


Guys can anybody help me? I start game with this mod. And when game loading he come to naval distances and crash. I dont know how to fix this can anybody help me?


same as me