Types of War in Civilization VI. See Casus Belli for all the complex ways to go to war.
Types Of War
| The War and Casus Belli types In Civilization VI. | |||
|---|---|---|---|
| War Type | Warmonger Penalty | Description | Notes |
| Declare Surprise War | Heavy | ||
| Declare Formal War | Moderate | Used to declare war on a player you have Denounced at least 5 turns ago. No restrictions on which cities you may capture. | |
| Declare Joint War | Establish a Joint war against a target civilization. | ||
| Declare Holy War | Moderate | Used to declare war on a power that has Religiously converted one of your cities. All Warmonger penalties halved. | |
| Declare Liberation War | None | Used to declare war on a power that has captured a city from one of your friends or allies. No Warmonger penalty for liberating any of those cities. | |
| Declare Reconquest War | None | Used to declare war on a power that has captured one of your cities. No Warmonger penalties apply. | |
| Declare Protectorate War | None | Used to declare war on a power that has attacked one of your allied City-States. No Warmonger penalty for liberating that City-State. | |
| Declare Colonial War | Moderate | Used to declare war on a power that is two technology eras behind you. All warmonger penalties halved. | |
| Declare War of Territorial Expansion | Egregious | Used to declare war on a power that borders your empire. Must have 2 of your cities within 10 tiles of 2 opponents' cities. Warmonger penalties reduced by 25%. | |