- +1% Missionary strength
- +2 Tolerance of the true faith
- +1 Max promoted cultures
- +10% Cavalry combat ability
- +15% Improve relations
- −10% Aggressive expansion impact
- −1 National unrest
- −10% Stability cost modifier
- +10% Fort defense
- +10% Institution spread
- +20% Land force limit modifier
Lan Xang, "The Land of One Million Elephants", is a landlocked South-East Asian kingdom which is usually regarded as a precursor to modern-day Laos. Lan Xang is the primary tag for the Lao culture.
This section may contain outdated information that is inaccurate for the current version of the game. The last version it was verified as up to date for was 1.17.
Lan Xang is in one of the more favourable positions of Southern Asia. It is surrounded by either states of the same strength, or weaker states. Nearly all nearby states share the same religion, and Lan Xang's culture group is popular in most nearby provinces. This just means that there will be fewer rebellions when the player conquers them, and that they will be more efficient, tax/production/trade power wise. If the player is careful and doesn't become too weak/isolated, and keeps Ayutthaya and Ming pacified, they should snowball nicely. Lan Xang's strategy is very similar to the strategy for Khmer, though they are in a better position.
The player should start by allying all the larger states nearby, generally to the West. Be careful not to ally with some of the weak states directly bordering Lan Xang, as they are prospective conquered states. Begin by finding the weakest, most isolated state that isn't Champa. This is usually Lan Na, or potentially Hsenwi. Start by fabricating a claim on any one of their provinces, and building up Lan Xang's army. The player should improve relations with Champa, while they wait.
The reason the player shouldn't focus on conquering Champa is that they very rarely ally with anyone, as they are isolated, surrounded by large nations, and have a different state religion: Hindu. They are a useful vassal as their extra army force limit can turn the tide in any wars between the middle powers such as Dai Vet, Khmer or Lan Xang. Champa doesn't need to be quickly conquered, unlike some of the smaller states who will pick up strong allies.
Hopefully the player can now attack an friendless Lan Na. Take two of their provinces- it won't be worth taking another diplomacy slot to vassalize them, as they share the player's religion and are in the same culture group. Also, full out annexation will cost a lot of diplomatic points. The player can pick up their capital in a later war. Now that Lan Na has been decimated, the player can focus on Champa. An outright vassalization is possible, as they are Hindi and not in the same culture group- taking a single province to cut down on diplo-annexation cost isn't a bad idea, though.
The Ayutthaya problem
Hopefully, the player has now conquered most of Lan Na, some of Champa and has the reminder as a vassal. At this point the player is more powerful than most of the middle powers in the area. The player should recuperate lost manpower and war exhaustion, and make sure no revolts pop up, and bide their time. Look around the political landscape to see who is particularly weak/in the middle of a large war, and be ready to swoop in and nab a few provinces. The player should always be using their diplomats- to improve relations, and to fabricate claims on potential conquests. Keep pressing to the West, and gobbling up the smaller states. It shouldn't matter if the player has to cancel alliances and then declare war, that's acceptable. Keep continuing this, and conquering Khmer, until most of Southern Asia is owned. Only then will they be able to attack and destroy their rival - Ayutthaya.
If the player can finally conquer Ayutthaya, the campaign turns into a standard one of snowballing as fast as possible. Lan Xang still need to Westernize early and prepare for the Europeans, but this is not that hard of a goal. The later stages of the game are the same as for Khmer. As a powerful local nation the player can expand in the direction of their choice. Ming to the North may prove particularly challenging as would any unified Indian state.