# Total War: Warhammer 3 Vassals Guide: Are They Worth It, Tribute and Rebellions

> A practical breakdown of how to secure vassals and confederations through settlement trades, military pressure, and diplomacy value. It is aimed at players who want to bend major factions to their side instead of wasting time on weak minor vassals.

- **Game:** Total War: Warhammer III
- **Category:** Mechanics
- **Author:** LongBeam (https://guides-factory.com/about)
- **Difficulty:** Intermediate
- **Reading time:** 12 min
- **Published:** 2026-08-27
- **Updated:** 2026-08-31
- **Tags:** Diplomacy, campaign strategy, confederation, settlement trading, vassals, warhammer 3 vassals
- **Adapted from:** [Ultimate Vassal Diplomacy Guide - Total War: Warhammer 3 Immortal Empires](https://www.youtube.com/watch?v=5zTNSvxrnLk)
- **Canonical URL:** https://guides-factory.com/guides/total-war-warhammer-3-vassal-diplomacy-guide

---

If you want to vassalize or confederate major factions in Total War: Warhammer III, you can apply pressure through managed settlement trades, military dominance, and careful diplomacy. Factions with low army strength, high territorial losses, or specific region desires are far more likely to submit. Avoiding alliances with potential vassals and repeatedly trading the right settlements are key strategies that let you reliably sway even powerful targets.

## Quick answer

| What | Answer |
| --- | --- |
| Main method | Trade valuable settlements, weaken the target, and keep your own power higher than theirs. |
| Best settlement value | Military buildings, especially barracks, are worth more than ordinary economy buildings. |
| Why alliances can hurt | Allies add strength to the target’s side and can make vassalization harder. |
| Weak target cue | A faction with no armies and low balance of power is much easier to vassalize. |
| Early vampire count route | Take Asylen on turn 1, Templehof on turn 2, Zufbar on turn 4, then Grand Peak. |
| Relationship trick | Repeated trades improve diplomatic relations over time, even if the settlement value is equal or lower. |

---

## Check whether a faction can be persuaded

Diplomatic deals succeed most often when you understand a target's vulnerability. The success of vassalization and [confederation](/guides/total-war-warhammer-3-confederation-guide) offers depends on several values shown directly in the diplomacy screen:

- **Baseline evaluation** sets the fundamental willingness for a faction to accept, and is influenced by strategic strength and relations.
- **Diplomatic prospects** indicate how likely the AI is to consider deals based on your relationship, recent trades, and war history.
- **Main threat** is a modifier tied to perceived power — being much stronger than the target can intimidate or persuade them, and makes them easier to sway.
- **Strength rank** compares armies, provinces, and sometimes allies. The further your rank is above theirs, the better.

A target that has lost all their armies and holds few settlements is much easier to persuade. Look for factions whose balance of power has collapsed, signifying massive losses. When the diplomacy screen shows no standing forces, a single lord, or reduced territory, the chances for success greatly improve.

![Diplomacy screen with Vlad von Carstein and Grimgor Ironhide, showing the 'Become Vassal' deal, baseline evaluation (75.0), relative faction strength (44.8), diplomatic prospects (-5.0), main threat (-12.0), and strength ranks (Vlad: 1, Grimgor: 113).](https://api.guides-factory.com/media/uploads/2026/08/01-diplomacy-panel.jpg "This diplomacy panel details why a vassalization deal is rejected, including faction strength, deal modifiers, and baseline evaluation.")

![Faction panel showing a target with no armies and only a lord remaining.](https://api.guides-factory.com/media/uploads/2026/08/02-no-army.jpg "The diplomacy panel reveals a weak faction with no standing armies, illustrating a target vulnerable to persuasion or vassalization.")

---

## Trade settlements that the target actually wants

Settlement trading is the most reliable way to unlock high-level diplomatic deals. Not all settlements are equal in the eyes of the AI: military infrastructure is valued far above economy or raw territory.

- **Military buildings** are the single strongest bargaining chip. Barracks (especially tier 1) are both cheap to build and rapidly add diplomatic value.
- **Special buildings**—including race-specific landmarks—can be even more valuable and sometimes hard-coded for particular factions.
- **Offering a full province** (all regions) is more persuasive than trading single settlements, as the AI prefers cohesive territory.
- **Repeat trades** (swapping settlements over several turns) stack up diplomatic improvements and pave the way for later agreements.

![Settlement trade window offering 'The Daemon's Stump' to Grimgor Ironhide, with diplomatic treaty value 72.2 and economic value 62.2 shown in the tooltip, and a map showing the settlement's location.](https://api.guides-factory.com/media/uploads/2026/08/03-settlement-trade.jpg "Trade window showing the value breakdown for offering a settlement, highlighting what makes a vassal deal viable.")

![Trade deal screen with Vlad von Carstein offering the full province 'The Wolf Lands' to Grimgor Ironhide, showing settlement trade options, faction attributes, and detailed map view.](https://api.guides-factory.com/media/uploads/2026/08/04-full-province.jpg "This screen demonstrates how offering an entire province increases the value of a diplomatic deal.")

The best approach is to capture territory, build barracks or special military buildings, then trade the settlements for value. Both repeated trades and offering what the faction truly wants (military assets or full provinces) improve relations and make confederation/vassalization more likely.

---

## Weaken the target before asking for the deal

When the goal is submission, reducing the target's economic and military power is essential. Here are the most effective steps to weaken a faction and make diplomacy work:

<ol class="checklist">
  <li>
    <label><input type="checkbox"><span class="name">Remove their income with settlement trades or conquests</span></label>
    <em>Trading key settlements away strips tens of thousands of gold <a class="jump" href="https://www.youtube.com/watch?v=5zTNSvxrnLk&t=290s" target="_blank" rel="noopener">4:50 ↗</a></em>
  </li>
  <li>
    <label><input type="checkbox"><span class="name">Keep them bankrupt for several turns</span></label>
    <em>Bankrupting stops recruitment and construction <a class="jump" href="https://www.youtube.com/watch?v=5zTNSvxrnLk&t=348s" target="_blank" rel="noopener">5:48 ↗</a></em>
  </li>
  <li>
    <label><input type="checkbox"><span class="name">Time your offer when they have no army left</span></label>
    <em>No armies means much higher acceptance chances <a class="jump" href="https://www.youtube.com/watch?v=5zTNSvxrnLk&t=233s" target="_blank" rel="noopener">3:53 ↗</a></em>
  </li>
  <li>
    <label><input type="checkbox"><span class="name">Target factions already at war — they are easier to pressure</span></label>
  </li>
</ol>

![Campaign map diplomacy screen with Vlad von Carstein trading the Daemon's Stump settlement to Grimgor's Ardboyz; Grimgor shown with low relations and economic trade details visible; map shows reduced territory and faction positions.](https://api.guides-factory.com/media/uploads/2026/08/05-bankrupt-target.jpg "The diplomacy screen demonstrates trading away settlements to weaken a target faction economically and make them easier to pressure.")

---

## Avoid alliances that inflate the target’s power

Military alliances and defensive pacts make diplomacy more difficult by increasing the perceived strength of the target. When you ally with a faction you want to vassalize or confederate, the game calculates your combined strength, making the deal harder:

- Allying with a target increases their faction's perceived power in negotiations. Your armies, provinces, and vassals boost their diplomatic standing.
- Even when relations are high, alliances can backfire—vassalization may become impossible as the target's power ranking rises.
- Military allies, especially strong ones, are factored into the AI's strength assessment—even if not fully shown in the visible strength rank. Thus, a faction with weak actual armies but strong allies may appear much tougher.
- Vassals and allies are not always completely reflected in the rankings, but the game factors them in as hidden modifiers that impact diplomacy success.

![Diplomacy screen in Total War: Warhammer with Vlad von Carstein negotiating with Balthasar Gelt, showing Vlad's strength rank 1, Gelt's strength rank 37, and the vassalization evaluation breakdown including relative faction strength.](https://api.guides-factory.com/media/uploads/2026/08/06-allied-strength.jpg "The diplomacy screen reveals how having an ally can inflate the target's perceived strength, affecting vassalization chances.")

If your goal is to absorb or control a faction, avoid allying with them. Maintaining direct power and offering valuable settlements is more effective than boosting their bargaining position with your own resources.

---

## Use faction-specific land priorities

Some regions carry special weight for certain factions, whether through hard-coded preferences, starting provinces, or unique landmarks. Properly identifying these priorities greatly increases a deal's value.

- Factions often prioritize their original provinces (the region they start in), and will bend further for them.
- **Kislev** factions, as an example, strongly value areas like Layer of the Troll King and Praag, even more than higher-tier settlements or traditional economic assets.
- Landmarks or race-specific buildings multiply a region's diplomatic worth, often outweighing generic military or economy buildings.
- Some regions are coded for attraction—trading these to the right faction can unlock vassalization against all odds.

![Campaign map with region ownership overlay, showing provinces such as Praag, Layer of the Troll King, and others with ownership, control, climate, and faction details visible.](https://api.guides-factory.com/media/uploads/2026/08/07-wanted-province.jpg "The campaign map highlights contested and highly valued regions favored by specific factions.")

Before negotiating, identify which provinces the target faction will fight hardest for. Offer their priority territory, and bolster its value with barracks or special buildings if possible.

---

## Follow an early vampire count route that unlocks vassals

Opening moves matter: the specific conquests in the early turns unlock diplomatic advantage for vampire count factions. This step-by-step path reliably sets up vassal deals:

<ol class="checklist">
  <li>
    <label><input type="checkbox"><span class="name">Capture Asylen on turn 1</span></label>
  </li>
  <li>
    <label><input type="checkbox"><span class="name">Take Templehof on turn 2</span></label>
  </li>
  <li>
    <label><input type="checkbox"><span class="name">Move on Zufbar by turn 4 (ignore relations penalties)</span></label>
  </li>
  <li>
    <label><input type="checkbox"><span class="name">Head to Grand Peak, defeating greenskin resistance</span></label>
  </li>
  <li>
    <label><input type="checkbox"><span class="name">Build barracks in captured territory before trading it</span></label>
    <em>Barracks add extra diplomatic value for the trade <a class="jump" href="https://www.youtube.com/watch?v=5zTNSvxrnLk&t=1113s" target="_blank" rel="noopener">18:33 ↗</a></em>
  </li>
  <li>
    <label><input type="checkbox"><span class="name">Fight Templehof, Zufbar, and greenskins to prevent relation collapse</span></label>
    <em>Warring these factions helps maintain non-negative relations <a class="jump" href="https://www.youtube.com/watch?v=5zTNSvxrnLk&t=1153s" target="_blank" rel="noopener">19:13 ↗</a></em>
  </li>
</ol>

![Campaign map showing Eashen, Castle Drakenhof, Zufbar, Grom Peak, Oakenhammer, and other settlements, with terrain and faction banners visible.](https://api.guides-factory.com/media/uploads/2026/08/08-opening-route.jpg "Map view showing the strategic locations relevant to the vampire counts' early expansion but without the opening route sequence or conquest order.")

---

## Turn captured provinces into better diplomacy

Diplomacy is a snowball: each good deal makes the next easier. Trading settlements—especially those with military value—will raise diplomatic relations several turns after the deal.

<ol class="checklist">
  <li>
    <label><input type="checkbox"><span class="name">Trade settlements for improved diplomatic relations after each deal</span></label>
    <em>The relation meter climbs after settlement trades <a class="jump" href="https://www.youtube.com/watch?v=5zTNSvxrnLk&t=1385s" target="_blank" rel="noopener">23:05 ↗</a></em>
  </li>
  <li>
    <label><input type="checkbox"><span class="name">Wait one or more turns for the improvement to fully apply</span></label>
    <em>Full diplomatic value may not appear until the following turn <a class="jump" href="https://www.youtube.com/watch?v=5zTNSvxrnLk&t=1464s" target="_blank" rel="noopener">24:24 ↗</a></em>
  </li>
  <li>
    <label><input type="checkbox"><span class="name">Plan repeat trades—even equal or lower valued settlements work</span></label>
    <em>Repeat deals raise relations, regardless of absolute value <a class="jump" href="https://www.youtube.com/watch?v=5zTNSvxrnLk&t=1411s" target="_blank" rel="noopener">23:31 ↗</a></em>
  </li>
  <li>
    <label><input type="checkbox"><span class="name">Push relations to make later vassalization or confederation easier</span></label>
  </li>
</ol>

![Diplomacy screen with Vlad von Carstein and Marius Leitdorf, showing a trade settlement offer for Mordheim, payment demand, and the relationship meter at the top.](https://api.guides-factory.com/media/uploads/2026/08/09-repeat-trade.jpg "Diplomacy screen demonstrating how settlement trades can improve relations between factions.")

This technique is essential: even if the settlement value is equal or slightly less, the repeated relationship bonus accumulates and unlocks high-level diplomatic deals.

---

## Prefer strong vassals over many weak ones

Not all vassals are equally useful. Minor factions typically provide little military or economic power, while larger vassals generate income, defend borders, and win wars.

- Minor factions and most Lord factions are weak and unprofitable.
- Minor dark elf factions are a rare exception—they can offer more income than most others.
- Having a few vassals with substantial territory is far better than keeping many small, ineffective ones.
- Prioritize major factions as vassals—they contribute more economic value and military strength in the long run.

Building your campaign around strong vassals instead of dozens of minor ones keeps your border secure and lets you focus on expansion rather than micromanagement.

---

## Also worth knowing

<div class="tipbox alt"><span class="tag">Before you commit</span>

- **Barracks are the top settlement asset for trading**. Military buildings grant more diplomatic value than economy or resource structures, making barracks the best ordinary choice. Special buildings and landmarks can override even barracks for particular factions.
- **For best results, avoid alliances, break the target’s strength, then trade desired territory**. A common practical sequence for reliable vassalization is: 1) no alliances with the target, 2) offer key settlements, 3) drain armies and economy, and 4) propose vassalization.
- **This method can snowball entire campaigns**. It is possible to vassalize most factions if you follow the trading and weakening process, especially on higher difficulty or with aggressive expansion.
- **Players making repeated trades often strip enemy resources, incite proxy wars, and fund rival factions**. The strategy works, but beware that it can spawn unpredictable wars or empower enemies.
- **The vassal system can be inconsistent**. After you secure vassals, they may behave erratically—sometimes refusing war calls or acting hostile, regardless of success during negotiation.
- **Vassalization options aren’t always offered for every campaign setup**. Some factions, game rules, or mods may affect whether the vassalize action even appears.
- **Vassal reliability is a separate challenge**. Securing a vassal is just step one—keeping them loyal and responsive is unpredictable, and sometimes impossible.

</div>

---

## FAQ

### Do you need to ally with a faction before you can vassalize it?

No. Alliances can actually make the target harder to sway because your own strength gets folded into theirs. Direct trade deals, battlefield pressure, and reducing their economy are more reliable.

### What kind of settlement is best to trade for vassalization?

Military settlements are the strongest bargaining chips, especially ones with barracks or special buildings. Full provinces also carry more weight than a single region, and some factions value their starting province or race-specific landmarks very highly.

### Does high relationship alone make vassalization easy?

No. Good relations help, but faction strength, military losses, economy, and the value of what you offer matter more. A weak faction can still refuse if the diplomatic modifiers are bad enough, and a strong faction can still be persuaded if the deal is valuable enough.

### Is it better to have many minor vassals or a few strong ones?

A few strong vassals with meaningful territory are usually better. Minor factions often bring little economic or military value, while larger vassals can hold borders, fight wars, and generate more useful income.

