United Kingdom

From Hearts of Iron 4 Wiki
Jump to navigation Jump to search
United Kingdom
United Kingdom.png

Government Type:
Democratic, Conservative

Allies (Leader)

The United Kingdom of Great Britain and Northern Ireland (more commonly “the United Kingdom,” “the UK,” “Great Britain,” or simply “Britain”) was the principal power of the Allies in World War II. In 1939, the UK honored its guarantees to Flag of Poland Poland by declaring war on Flag of Germany Germany. After the fall of Flag of France France, the United Kingdom was the only Allied nation left in Europe until Flag of Italy Italy's surprise invasion of Flag of Greece Greece led the Greeks to fully join the Allies. It remained the only one of the “Big Three” (Great Britain, the Soviet Union, and the United States) in the war until 1941 when Germany invaded the Flag of Soviet Union Soviet Union. The United Kingdom was heavily engaged in the Western European, Atlantic, Mediterranean, African, and Southeast Asian theaters.


Main article: British events

National focus[edit]

British national focus tree.
Main article: British national focus tree

The Flag of United Kingdom United Kingdom, as one of the seven major powers, has a unique national focus tree.

The UK focus tree has 5 main branches to go down through, with various mutually exclusive paths along the way:

  • Limited Rearmament branch gives bonuses to military research and builds air bases, factories and naval dockyards in the country.
  • Reinforce the Empire branch reinforces and develops the Empire's holdings, gives wargoals, influences nations to lean to democracy, or allows you to hold the Imperial Conference, and if discussions go well with the Dominions, will allow the United Kingdom to unite the Empire through the Imperial Federation.
  • Revisit Colonial Policy branch focuses on guiding all of your colonies and dominions to independence, and finally decolonizing the British Empire completely.
  • Steady as She Goes branch gives you options to either prepare your homeland for the inevitable war or to abandon Chamberlain's policy of appeasement and tighten your grip against the other major powers.
  • A Change in Course branch has 3 main alternate history paths, one to get Edward VIII to rule Great Britain directly with the King's Party, one to get Oswald Mosley and his British Union of Fascists in power with Organize the Blackshirts, and finally to become a Communist state with Concessions to the Trade Unions.


Army Technology Naval Technology Air Technology Electronics & Industry
  • Infantry Eq. I
  • Motorized
  • Engineer Company I
  • Recon Company I
  • Great War Tank
  • Light Tank I
  • Towed Artillery I
  • Towed Anti-Air I
  • Destroyer II
  • Light Cruiser I
    • Upgraded Amphion Class
  • Heavy Cruiser I
    • Upgraded County Class
  • Battlecruiser I
    • Upgraded Admiral Class
  • Battleship I
    • Upgraded Nelson Class
  • Submarine I
    • Upgraded O/P/R Class
    • Upgraded S Class
  • Transport Ship
  • Interwar Fighter
    • Interwar Carrier Fighter
  • Interwar Bomber
  • Close Air Support I
  • Naval Bomber I
    • Carrier Naval Bomber I
  • Electronic Mechanical Engineering
  • Radio
  • Radio Detection
  • None

Decommissioning the O/P/R submarine is recommended since the Stealth and Engine upgrades just cancel each other out.


National Spirits[edit]

The UK starts with three National Spirits.

British Stoicism icon
British Stoicism
  • Ideology drift defense: +50%
  • Yes.png Can create factions
If you can keep your head when all about you are losing theirs and blaming it on you, if you can meet with triumph and disaster and treat those two impostors just the same. Yours is the Earth and everything that's in it, and - which is more - you'll be a man, my son.
The War to End All Wars icon
The War to End All Wars
  • Recruitable Population Factor: -25%
With the Great War in recent memory, both the nation's people and leaders are reluctant to send another generation to die in the trenches.
King George V icon
King George V
Popular Figurehead
Stability: 15%
Rallying around the King of the United Kingdom and the British Dominions, as well as Emperor of India, the British people stand united and proud of their imperial legacy.


UK starts 1936 as a democracy, with elections every four years, with the next one in 1940. The ruling party is the Conservative Party led by Stanley Baldwin.

The UK has no National Focus that allows it to change ideology; Only fascist or communist Political Advisors could reverse the ideology. The AI controlling other countries can attempt to promote other ideologies. Because of the UK's National Spirit British Stoicism this will be much slower than normal as it grants Ideology drift defense: +50%.


The Commonwealth
The United Kingdom maintained close ties with the Commonwealth countries of Flag of Canada Canada, Flag of South Africa South Africa, Flag of Australia Australia and Flag of New Zealand New Zealand. These countries were formerly part of the British Empire, but are now independent. They have their own governments, economies and armed forces and the UK player cannot control these unless they provide an expeditionary force to the UK. But they start the game as members of the Allies faction, led by the UK. Certain UK focus choices affect them (e.g., construction of factories).

NOTE: With the Together For Victory DLC, all the Commonwealth Realms are British subjects to various degrees.

Their colony of India has some local autonomy. It is represented in the game as a puppet called Flag of British Raj British Raj. It is possible for the UK to release British Raj as an independent country. With the "Together For Victory" DLC active, it is represented as a Colony, more autonomous than a puppet.

The UK starts with with direct control over many colonies across the world. These include the strategic locations of Gibraltar and the Suez Canal and the rich colonies in Malaya Singapore.

The Allies
The UK is leader of the faction called the Allies. The faction's starting members are the Commonwealth countries (Canada, South Africa, Australia, and New Zealand) and the British Raj and British Malaya. It's the most powerful faction in the game in the start. The UK has very friendly relations with France, but the latter isn't a member of the Allies in start, nor is the United States. France normally joins the faction early in the game, but it might not — its National Focuses could steer it elsewhere. The U.S. normally joins the Allies later, but it can also form its own faction.

Diplomatic Rules[edit]

Rule Whether it applies Reason
Can declare war on country of the same ideology group without a war goal No Democracy
Can Guarantee other Ideologies Yes Democracy
Can join Factions led by another Ideology Yes Democracy
Can create Factions Yes National Spirit
Lowers World Tension with Guarantees Yes Democracy
Can puppet a country No Democracy
Can justify war goals against a country that has not generated world tension No Democracy


United Kingdoms economy in 1936 has good access to all resources except oil which is easily accessible through trade for the UK as its mostly in the hands of democracies. There is also plenty of territory for construction of new factories with 110 free slots. Many resources come from the far reaches of the United Kingdom by convoys, so ensuring that the Royal Navy has superiority along the trade routes is of importance to ensure that these make their way to Britain.


Conscription Law Economy Law Trade Law
Volunteer Only.png Volunteer Only
  • 1.5% Recruitable population
Civilian Economy.png Civilian Economy
  • 35% Consumer Goods factories
  • –30% Factory construction speed
  • +30% Factory (type) conversion cost
Export Focus.png Export Focus
  • 50% Resources to market
  • –5% Research time
  • +10% Factory/Dockyard output
  • +10% Construction speed


1936 state: The U.K. has a moderate production ability when it comes to military factories and a great shipbuilding one.

Military factory
14 Military Factories
Naval dockyard
19 Naval Dockyard
Civilian factory
34 Civilian Factories


42 1042 404 144 352 234

These numbers represent the available resources, depending on the trade law a certain amount may be traded away.

Staff and Designers[edit]

These are the unique companies and individuals that are available for the British to use.

Political Advisors
Advisor Type Effect Cost
Harry Pollitt Communist Revolutionary
  • Communism Support: +0.1%

Country must be Communist

150 pp
John Beckett Fascist Demagogue
  • Daily Fascism Support: +0.1%

Country must be Fascist

150 pp
Nevile Henderson Backroom Backstabber
  • Political Power Gain: +5.0
  • Ideology drift defense: +15.0%
150 pp
Leslie Hore-Belisha Armaments Organizer
  • Civilian to Military conversion speed: +20.0%
150 pp
Clement Attlee Democratic Reformer
  • Daily Democracy Support: +0.1

Has not completed focus A Change in Course

150 pp
Philip Kerr Silent Workhorse
  • Political Power Gain: +15.0%

Country must be Democratic Has not completed focus No Further Appeasement

150 pp
Maxwell Aitken War Industrialist
  • Military Factory Construction Speed: +10.0%
  • Dockyard Construction Speed: +10.0%
150 pp
Ernest Bevin Quartermaster General
  • Airbase construction speed: +15.0%
  • Naval base construction speed: +15.0%
  • Rocket Site construction speed: +15.0%
  • Radar Station construction speed: +15.0%
  • Nuclear Reactor construction speed: +15.0%
150 pp
George Orwell Socialist Novelist
  • War Support: +10.0%
  • Communism Support: +0.1

Country must be Communist

150 pp
Sylvia Pankhurst Red Suffragette
  • Stability: -10.0%
  • Recruitable Population: +2.00%

Country must be Communist

150 pp
Oswald Mosley Economic Reformer
  • Stability: +5.0%
  • Consumer Goods Factories: -5.00%

Country must be Non-Aligned Has Completed Focus King's Party

150 pp
David Lloyd George Old Figurehead
  • Political Power Gain: +15.0%

Country must be Non-Aligned Has Completed Focus King's Party

150 pp
Winston Churchill Royalist Bulldog
  • War Support: +10.0%
  • Unaligned Support: +0.1

Country must be Non-Aligned Has Completed Focus King's Party

150 pp
Mary Sophia Allen Princess of Terror
  • Effect of partisans on us: -25 %
  • Foreign subversive activities efficiency: -30 %
  • Non-Core manpower: +2.00%

Country must be Fascist

150 pp
Tank Designers
Designer Type Effect Cost
Vickers-Armstrong Tank Designer
  • Armor Research Time: -10.0%
  • Armor: Reliability: +5.0%
  • Armor: Soft Attack: +5.0%
150 pp
Ship Designers
Designer Type Effect Cost
Cammell Laird Atlantic Fleet designer
  • Naval Research Time: -10.0%
  • Carrier: Armor: +50.0%
  • Capital Ship: Armor: +10.0%
  • Capital Ship: Naval firepower: +10.0%
150 pp
Harland & Wolf Pacific Fleet designer
  • Naval Research Time: -10.0%
  • Carrier: Deck size: +25.0%
  • Carrier: Armor: -15.0%
  • Carrier: Max Range: +25.0%
  • Capital Ship: Max Range: +25.0%
  • Screen: Max Range: +25.0%
  • Submarine: Max Range: +25.0%
150 pp
John Brown & Company Coastal Defense Fleet designer
  • Naval Research Time: -10.0%
  • Carrier: Production Cost: -25.0%
  • Carrier: Deck size: -20.0%
  • Carrier: Max Range: -50.0%
  • Capital Ship: Production Cost: -25.0%
  • Capital Ship: Armor: -20.0%
  • Capital Ship: Naval firepower: -20.0%
  • Capital Ship: Max Range: -50.0%
  • Screen: Production Cost: -25.0%
  • Screen: Max Range: -50.0%
  • Submarine: Production Cost: -25.0%
  • Submarine: Max Range: -50.0%
150 pp
Yarrow Shipbuilders Escort Fleet designer
  • Naval Research Time: -10.0%
  • Screen: Max Range: +30.0%
  • Screen: Sub detection: +10.0%
  • Screen: Max Speed: +10.0%
  • Screen: Production Cost: +10.0%
150 pp
Aircraft Designers
Designer Type Effect Cost
Avro Heavy aircraft
  • Air Research Time: -10.0%
  • Strategic Bomber: Strategic Bombing: +10.0%
150 pp
DeHavilland Medium aircraft
  • Air Research Time: -10.0%
  • Heavy Fighter: Reliability: +20.0%
  • Tactical Bomber: Reliability: +20.0%
150 pp
Fairey Aviation Naval aircraft
  • Air Research Time: -10.0%
  • Naval Bomber: Operational Range: +10.0%
  • Naval Bomber: Naval Attack: +10.0%
  • CV Naval Bomber: Operational Range: +10.0%
  • CV Naval Bomber: Naval Attack: +10.0%
150 pp
Hawker Aircraft CAS
  • Air Research Time: -10.0%
  • Close Air Support: Ground Attack: +10.0%
  • Close Air Support: Reliability: +10.0%
  • Carrier CAS: Ground Attack: +10.0%
  • Carrier CAS: Reliability: +10.0%
150 pp
Supermarine Light aircraft
  • Air Research Time: -10.0%
  • Fighter: Agility: +10.0%
  • Fighter: Max Speed: +10.0%
  • Carrier Fighter: Agility: +10.0%
  • Carrier Fighter: Max Speed: +10.0%
150 pp
Materiel Designers
Designer Type Effect Cost
Royal Arsenal Artillery designer
  • Artillery Research Time: -10.0%
150 pp
RSAF Enfield Infantry Equipment designer
  • Small Arms Research Time: -10.0%
150 pp
Vauxhall Motorized Equipment designer
  • Motorization Research Time: -10.0%
150 pp
Industrial Concern
Designer Type Effect Cost
AIOC Industrial Concern
  • Industrial Research Time: -10.0%
150 pp
English Electric Electronics Concern
  • Electronics Research Time: -10.0%
150 pp
Designer Type Effect Cost
Bernard Montgomery Grand Battleplan Expert
  • Grand Battle Plan Doctrine: -10.0%
  • Army Experience Gain: +0.05
250 pp
Harold Alexander Military Theorist
  • Land Doctrine Research Time: -7.0%
  • Army Experience Gain: +0.05
150 pp
James Somerville Grand Fleet Proponent
  • Fleet in Being Doctrine: -10.0%
  • Naval Experience Gain: +0.05
250 pp
Tom Phillips Naval Theorist
  • Naval Doctrine Research Time: -7.0%
  • Naval Experience Gain: +0.05
150 pp
Hugh Dowding Air Warfare Theorist
  • Air Doctrine Research Time: -7.0%
  • Air Experience Gain: +0.05
150 pp
Arthur Harris Victory Through Airpower
  • Strategic Destruction Doctrine: -10.0%
  • Air Experience Gain: +0.05
250 pp
James Chadwick Nuclear Scientist
  • Nuclear Research Time: -10.0%
150 pp
Frank Whittle Rocket Scientist
  • Rocket Research Time: -10.0%
150 pp


The United Kingdom starts with a world-dominating fleet across the globe, and a sizable air force. Its army nevertheless, is stretched thin because of the Empire's extent. The nation is almost depleted of manpower at the start of the game and juggling this is a major concern. Careful planning should be used for the 59,000 manpower pool; newly made ships and planes will require their part of manpower for crewing. Though manpower demands for the army's preparations for coming war are pressing, they're not urgent for Britain by 1936 and could wait for a while.

Type No.
Infantry cropped.png Infantry 32
Cavalry cropped.png Cavalry 3
Light tank cropped.png Light tank 1
Army experience.png Total divisions 36
Type No.
Destroyer.png Destroyer 128
Light Cruiser.png Light cruiser 30
Heavy Cruiser.png Heavy cruiser 16
Battlecruiser.png Battlecruiser 3
Battleship.png Battleship 12
Submarine.png Submarine 42
Carrier.png Carrier 4
Navy experience.png Total ships 235
Air Force
Type No.
CAS.png Close air support 304
Fighter c.png Fighter 666
Naval bomber.png Naval bomber 126
Tactical bomber.png Tactical bomber 240
Air experience.png Total planes 1336
Most of the British Army's forces are concentrated in England, Wales, and Scotland, with the remainder in small garrison units around their colonies. The British isles are home to 16 infantry divisions, of which five are full-strength, regular-quality of 9 regiments each. The rest of the divisions are similar in size, but at a 'trained' level and with equipment shortages. They're coupled with two cavalry brigades and a light armor brigade. Overseas divisions are about 20 trained infantry brigades, made of four regiments that share a shortage of equipment. The British Army is expected to be hard pressed from the extent of territory that needs to be defended when war breaks out. The player will have to decide wisely how to split its originally limited divisions to defend the Empire and allied nations.
The Royal Navy is one of the largest in the globe by 1936, with the U.S. Navy on numerical par. The UK starts with all tier I ship techs and tier II destroyers, the G/H/I Class of which 9 are in construction on three production lines. There are also three heavily upgraded light cruisers, the Amphion Class under construction across three production lines. Two 'S Class' submarines are also under construction, though the O/P/R Class is more advanced.
Ship classes of the Royal Navy
Type Class Amount In Production Tech
CV Courageous Class 4 Carrier I
BB Nelson Class 2 Battleship I*
BB Queen Elizabeth Class 5 Battleship I*
BB Revenge Class 5 Battleship I
BC Admiral Class 1 Battlecruiser I*
BC Renown Class 2 Battlecruiser I
CA County Class 13 Heavy Cruiser I*
CA Hawkins Class 3 Heavy Cruiser I
CL Amphion Class 2 3 Light Cruiser I*
CL Emerald Class 7 Light Cruiser I*
CL C Class 21 Light Cruiser I
DD G/H/I Class 18 9 Destroyer II
DD A/B/C/D Class 34 Destroyer I*
DD V/W Class 76 Destroyer I
SS O/P/R Class 21 Submarine I*
SS S Class 9 2 Submarine I*
SS L Class 12 Submarine I
Convoy 800
* marks a variant with increased base stats to symbolize ships that are not modern enough to warrant a full 1936 tech level but too modern to fit into the1922 tech level.
Air Force
The United Kingdom's Royal Air Force (or R.A.F) by 1936 is the largest air force in the globe, with a number 30% larger than the U.S.A.F., 50% than the Luftwaffe, and twice the size of the french Armée de l'air. There are 78 "Nimrods" and "Sharks" operating from the aircraft carriers, occupying about 75% of the available carrier capacity.

Strategies and Guides[edit]

Have a good strategy for United Kingdom?
+ Add it to this article and help other players!
Please note the style guidelines and the example page.

Countering Subs[edit]

When war starts, enemy submarines are one of the first issues that the UK needs to deal with. Although all of the destroyers the UK starts with have depth charges, there isn't much available for detecting subs. None of their cruisers carry spotter planes until the Leander.

1) The first task is true for all nations: Rearrange the existing fleets into patrol fleets and strike fleets.

  • Patrol fleets should be made up almost entirely of destroyers, with optionally one or two light cruisers. If a light cruiser is present, it must have at least one spotter plane or it will not be useful in this role. Depth charges are optional on the cruiser, since the destroyers will reach the enemy subs first (the center line in naval battles). The downside to having a cruiser is that each cruiser uses enough fuel for 4.5 destroyers.
  • Patrol fleets are needed for the English Channel, North Sea, and Bay of Biscay regions to start with. Be prepared to deploy a patrol fleet to the Western Approaches.
  • Strike fleets are the main surface combat fleets, composed of capital ships and their screens. When a fleet is assigned as a strike fleet for the same region as a patrol fleet, the strike fleet will remain in port until the patrol fleet locates an enemy, and then it will automatically move to engage. The primary purpose of this system is to save fuel, and the game is designed to work this way.

2) For the UK in particular, the first line of detection comes from the land based radar towers. Some already exist to cover the English Channel at the start of the game, but these are far from sufficient. Building one in Aberdeenshire will provide critical coverage of the North Sea region. Additional beneficial locations include the Scottish Highlands and Northern Ireland regions. Upgrading to the 1938 level 2 radar towers is essential, in order, in the East Anglia, South-West England, and Aberdeenshire regions ASAP. Continue upgrading as needed to fill gaps in coverage.

3) Start naval bomber production. These will kill subs, not just surface ships. Base 100-200 in Sussex to conduct naval strikes over the English Channel.

4) At the start of the game, none of the British ship designs have sonar. Combined with the lack of spotter aircraft on their cruisers, this results in their patrol fleets being less than ideal for detecting subs. While the UK does start with the Sonar I module, consider researching Sonar II at the start of the game, before modifying any destroyer templates. Here are a couple:

V/W+ Class: Add a sonar module. No other changes. Both the V/W Class and the S Class destroyers can be upgraded to this.
  • Rename the E/F/G/H Class to the E/F Class. Historically the G and the H destroyers had sonar, while the E and the F did not.
  • Research Improved Torpedo Launchers to unlock the Torpedo Launcher II module.
G/H Class:
* Start with the E/F Class.
* Replace the Fire Control with Sonar II (to allow for the possibility of adding radar later).
* Upgrade the torpedoes to Torpedo Launcher II.
* If available, upgrade to Depth Charge II.
** If not, leave it as is, or optionally, change one torpedo launcher into a second Depth Charge I module.


Britzkrieg icon
As the United Kingdom, put Edward VIII in power, ally Germany and fully control Paris.
Crush the Dream icon
Crush the Dream
As a Communist United Kingdom, crush the American Dream by puppeting the U.S.A.
Last for a Thousand Years icon
Last for a Thousand Years
As the United Kingdom, accomplish the federation of the entire British Empire.
Nothing Wrong with our Bloody Ships icon
Nothing Wrong with our Bloody Ships
As the United Kingdom, have at least 9 battlecruisers.
One Empire icon
One Empire
Unite the entire world under the British Empire.
The Empire Strikes Back icon
The Empire Strikes Back
As Britain, declare war on one of your former subjects.
William Wallis icon
William Wallis
As the United Kingdom, put Edward VIII in power, enforce an American monarchy, and have both it and Scotland as subjects.