Dai Viet

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Kingdom rankDai Viet
Dai Viet.png
Primary culture
Vietnamese (Mon Khmer)

Capital province
Dong Kinh (613)

Despotic MonarchyGovernment monarchy.png

State religion

Technology group
ChineseChinese technology group
Dai Viet ideas

For Dai Viet, Annam and Tonkin.

Traditions.png Traditions:

+1 Attrition for enemies
+50% Hostile Core-creation cost

Infantry combat ability.png The Great Proclamation

+10% Infantry combat ability

Prestige.png Confucian Revival

+1 Yearly prestige

Fort defense.png Autonomous Villages

+20% Fort defense

National manpower modifier.png Village Militia

+25% National manpower modifier

Core-creation cost.png Don Dien

−10% Core-creation cost

Legitimacy.png Thuan Thiên

+1 Yearly legitimacy

Technology cost.png Literary Reform

−5% Technology cost

Idea bonus.png Ambition:

+10% Morale of armies

Dai Viet is a mid-sized country in Southeast Asia. In 1444, they border Flag of Ming Ming, Flag of Champa Champa, and Flag of Lan Xang Lan Xang. If they can maintain their independence from Ming they have the potential to expand greatly in the region and colonize the rich islands around them.

Vietnamese minor states[edit]

The kingdoms of Annam and Tonkin break off from Dai Viet in later historical starts, starting from 1527.


This is a list of all Flag of Dai Viet Dai Viet's events (from /Europa Universalis IV/events/flavorDAI.txt).

Msg event.pngLe Nghi Dan's Reforms

Emperor Le Nghi Dan has proposed various reforms concerning the government and the economic well-being of our kingdom. While many of these proposals make great sense, they will also be expensive and may cause unrest. What shall we do?

Trigger conditions
  • Fires only once
  • The year is at least 1460
  • The year is before 1470
Mean time to happen
  • 200 months

Event button 547.png
Administrative Reforms
  • GainAdministrative power.png100 Administrative power
Event button 547.png
Diplomatic Reforms
  • GainDiplomatic power.png100 Diplomatic power
Event button 547.png
Military Reforms
  • GainMilitary power.png100 Military power

Msg event.pngThe Rivalry of the Mac and Trinh Families

Two great families vie for the power of regent of this nation, the Mac and the Trinh. Because of this power struggle, the nation has slid into anarchy, with armed bands supporting one side or the other roaming the countryside. We can only hope that their feuding will end soon.

Trigger conditions
  • Fires only once
  • Ruler's dynasty is ‘Mac’
  • The year is at least 1527
Mean time to happen
  • 200 months

Event button 547.png
Curse their interminable feuding!
  • Random core province gainsLocal unrest.png+2 Unrest
Event button 547.png
The feud must stop, now!
  • LoseAdministrative power.png20 Administrative power

Msg event.pngThe Tay Son Rebellion

After years of corruption, mismanagement, and famine, the people of our nation have apparently had enough. They have risen up in rebellion under the leadership of the Tay Son brothers. What shall we do?

Trigger conditions
  • Fires only once
  • Stability is lower than 0
  • The year is at least 1700
  • The year is before 1800
Mean time to happen
  • 200 Months

Event button 547.png
Crush the rebels
  • Size 2 Peasant Rebels rise in revolt in 3 random core provinces
Event button 547.png
Negotiate a peaceful settlement
  • Random core province that is not the capital has its Autonomy.png autonomy increased by +100%.


Depending on the player's goals, Southeast Asia allows fast early expansion through vassalizing smaller neighbors, colonizing and eating apart a crumbling chinese empire in the north. Several nations in Indochina can be quickly vassalized in one or two wars.


Dai Viet begins with three directions to expand: west into Flag of Lan Xang Lan Xang, south into Flag of Champa Champa or north into Flag of Ming Ming, the last of which is highly recommended when Ming collapses to rebels by any chance. Its the only Mahayana country in the game, and its national ideas are made to play defensive. They're specially useful stacked with Defensive ideas and the Tropical terrain of this region. If a human player picks any of the 'Big four' of Southeast Asia (Ayutthaya, Dai Viet, Khmer or Lan Xang) two of them will pick you as a rival plus a minor nation. So for Dai Viet, it is usually Ayutthaya, Champa and Khmer/ Lan Xang.

First steps[edit]

The first thing that the player should do, besides picking rivals, is to set a plan: Stay in the continental area of Indochina or colonize the islands around and defend the continental territory. As already stated, the player will have to choose between Lan Xang or Khmer as an ally. Whatever the decision is, the second thing to do is attack Flag of Champa Champa and vassalize it as soon as possible. In this war, try to blockade Vijaya with all your fleet and transport troops to Qi Non to carpet siege. After this short war, now you have to pinpoint to Khmer or Lan Xang, independently of your alliances. Looking out for allies outside Indochina, Malacca is a good choice, since it usually rivals Khmer and Ayutthaya.

Always try to attack Khmer or Lan Xang while they're on war with Ayutthaya. Depend on who you ally, Flag of Ayutthaya Ayutthaya will attack the other within 30 years, join the fray and collect free loot. Once the Lao and Cham areas are under the Vietnamese control, further conflict with the Thai will be unavoidable, but an alliance with another neighbor, like Flag of Malacca Malacca or a unified Burmese kingdom, can usually dismantle or severely weaken Ayutthaya. If the player wishes to refrain from successive wars to recover from war exhaustion and manpower loss, colonizing can be an option.


The player's trade power share in capital's trade node Canton is relatively small and it is thus advisable to take a province in the Malacca trade node from Ayutthaya during the course of the first war. Once Flag of Lan Xang Lan Xang and Flag of Ayutthaya Ayutthaya are out of the picture, focus effort on Flag of Malacca Malacca and take over Malacca trade node. Taking Johor and Siak in the first war so you can cross the strait in subsequent wars. If Malaysia is united or they ally each other, you might want to develop the province of Ayutthaya to get institution (Right of Man DLC required), and out-tech them, as they usually have a much larger army.

After you are done with Flag of Malacca Malacca, finish the rest of South East Asia, then expand into Flag of Bengal Bengal or Flag of Ming Ming.


Disciples of Enlightenment icon
As Dai Viet, have 10 nations follow the Mahayana Faith by 1500.
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