A complete and up-to-date searchable list of all EU4 casus belli IDs.
Casus belli is a Latin term meaning case of war. In the game, a country with a casus belli (commonly abbreviated to "CB") on another country is deemed to have a valid cause for war. When declaring war, the player is presented with a list of available CBs.
| Name | ID |
|---|---|
Annex Daimyo | cb_shogun_annex |
Annexation War | cb_annex |
Border Friction | cb_border_war |
Canceled Loan | cb_loan_cancelled |
Claim on Throne | cb_claim_throne |
Cleansing of Heresy | cb_heretic |
Coalition | cb_super_badboy |
Colonial Independence | cb_colonial_independance_war |
Colonialism | cb_colonial |
Conquest | cb_conquest |
Crush the Revolution | cb_crush_the_revolution |
Defected Province | cb_defection |
Defender of the Faith | cb_defender_of_the_faith |
Diplomatic Insult | cb_insult |
Discovered Spy | cb_spy_discovered |
Dishonored Call | cb_dishonored_call |
Disloyal Vassal | cb_disloyal_vassal |
Excommunicated Ruler | cb_excommunication |
Flower Wars | cb_flower_wars |
Force Migration | cb_force_migration |
Force Tributary State | cb_force_tributary |
Force Union | cb_hundred_years_union |
Forced ally to break alliance | cb_forced_break_alliance |
Government Form War | cb_change_government |
Holy War | cb_crusade |
Humiliate | cb_humiliate |
Humiliate Rival | cb_humiliate_rotw |
Imperial Ban | cb_imperial_ban |
Imperial Liberation | cb_hre_attacked |
Imperial Realm War Superiority | cb_force_join_hre |
Imperialism | cb_imperial |
Independence | cb_independence_war |
Liberate Elector | cb_liberate_elector |
Liberation | cb_liberation |
Maya Confederation | cb_maya_expansion |
Nationalism | cb_nationalist |
Obscure Documents | cb_fabricated_claims |
Reconquest | cb_core |
Religious League | cb_religious_league |
Religious Unity | cb_religious_conformance |
Restoration of Union | cb_restore_personal_union |
Revoke Electorate | cb_revoke_electorate |
Revolutionary War | cb_revolutionary |
Sengoku | cb_sengoku |
Spread the Revolution | cb_spread_the_revolution |
Subjugation | cb_vassalize_mission |
Support Rebels | cb_support_rebels |
Take Mandate of Heaven | cb_take_mandate |
Trade Conflict | cb_trade_conflict |
Trade Conflict | cb_trade_league_conflict |
Trade Dispute | cb_trade_war |
Trade League Dispute | cb_trade_league_dispute |
Trade Protection | cb_privateers |
Trade War | cb_trade_war_triggered |
Tribal Conquest | cb_horde_vs_civ |
Tribal Feud | cb_tribal_feud |
Unify China | cb_chinese_unification |
War Against the World | cb_war_against_the_world |
War for the Emperor | cb_daimyo_annex |
War for the Emperor | cb_independent_daimyo_annex |