宣战理由

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宣战理由（casus belli ） ，有时缩写为“CB”，是拉丁语的“Cause for War ”的意思，表示被其他角色视为合法的战争理由。统治者必须拥有一个有效的宣战理由用来对其他统治者声明战争，且仅能够获取宣战理由所明确的内容。

目标

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目标是战争中宣战理由所针对的地图区域。若宣战理由不针对特定区域，防守方的领地首都就是战争目标。

进攻方占领战争目标内的地产会获得更多的战争分数。反过来说，防御方——在最初的宽限期之后——会因为守住战争目标区域内的全部伯爵领而开始积累战争分数。

宣战理由列表

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每个宣战理由都将花费威望和/或虔诚。如果角色无法负担花费，则他们能够通过支付威望等级或者奉献等级来代替。如果角色的信仰领袖是属灵领袖，对信仰领袖宣战则花费500虔诚，如果是世俗领袖，则只需100虔诚。注意法理宣称要求革新。

宣战理由花费能够通过游戏规则之一移除。

一般宣战理由

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宣战理由（CB）	要求	花费	进攻方强制执行要求（100%胜利点数）	无条件和平	进攻方投降
独立战争	目标是领主	500 威望，如果不是部落 250 威望，如果是部落	进攻方独立	进攻方保持附庸	Attacker stays a vassal Defender imprisons the attacker Defender gains title revocation reason
夺取法理伯爵领	Tribal-era innovation Casus Belli De jure title above target county	100 威望	The de jure liege in attacker's realm gains the targeted county If that character is not attacker, attacker gets a weak hook (Favor) on them	Defender keeps their titles	Defender keeps their titles Attacker pays war reparations
夺取法理公爵领	Early Medieval-era innovation Chronicle Writing De jure title above target duchy	每个伯爵领 100 威望	The de jure liege in attacker's realm gains the targeted county If that character is not attacker, attacker gets a weak hook (Favor) on them	Defender keeps their titles	Defender keeps their titles Attacker pays war reparations
夺取法理头衔	Late Medieval-era innovation Rightful Ownership De jure titles above targets	每个伯爵领 100 威望	All titles that are de jure vassals of characters in attacker's realm are gained by those characters Attacker gets a weak hook (Favor) on each vassal who gains a title this way	Defender keeps their titles	Defender keeps their titles Attacker pays war reparations
宣称	Claim on the target Pressing several of one's own claims at once requires the High Medieval-era innovation Divine Right Pressing several of another's claims at once requires the Late Medieval-era innovation Rightful Ownership	100 prestige per county (own claim) 200 prestige per duchy (own claim) 400 prestige per kingdom (own claim) 800 prestige per empire (own claim) 250 prestige per county (other's claim) 500 prestige per duchy (other's claim) 1000 prestige per kingdom (other's claim) 3000 prestige per empire (other's claim)	Claimant gains the targeted titles Attacker gets a weak hook (Favor) on any other character who gained titles	Defender keeps their titles	Defender keeps their titles Claimant loses the claims used
附庸	One of the following: Tribal government Eastern religion Temporal head of faith	1000 prestige if not tribal 500 prestige if tribal	Attacker vassalizes the defender	Defender stays independent	Defender stays independent Attacker's factions gain discontent
抢掠俘虏	Faith has the Human Sacrifice tenet	80 if faith has the Armed Pilgrimages tenet 100 otherwise	Attacker imprisons 3–5 of the defender's courtiers	Attacker gains no prisoners	Attacker gains no prisoners
绝罚战争	Same faith as defender and any liege(s), and that faith allows excommunication Target is independent Target has the Excommunicated trait	None	Defender is deposed (i.e. succession happens as though the character had died)	Defender keeps their titles	Defender keeps their titles Defender loses the Excommunicated trait Attacker loses Opinion with head of faith
Ducal Conquest of County	Ducal Conquest lifestyle perk (Diplomat tree) Attacker owns a county in the same uncreated duchy as the target county	350 prestige if target's title rank is count 750 prestige if target's title rank is higher than count	Attacker gains the target county	Defender keeps their titles	Defender keeps their titles Attacker's factions gain discontent
强制附庸	Forced Vassalage lifestyle perk (Diplomat tree) Defender is an independent neighbouring realm with no more than 3 counties, plus 2 for each of the following innovations: Casus Belli (Tribal era) Chronicle Writing (Early Medieval era) Divine Right (High Medieval era) Rightful Ownership (Late Medieval era) Defender is not a holy order or attacker's head of faith	125 prestige per county	Attacker vassalizes the defender	Defender stays independent	Defender stays independent Attacker's factions gain discontent
可嘉地征服伯爵领	Request Claim on Ireland decision Attacker and defender don't have the same top liege Target county is in the Hibernia region	150 prestige if feudal and different faith 75 prestige if tribal and different faith 100 piety if feudal and same faith 50 piety if tribal and same faith	Attacker gains the defender's titles	Defender keeps their titles	Defender keeps their titles Attacker's factions gain discontent
蒙古入侵帝国	Mongol Empire title Tribal government Fame level is Established or higher Target title is adjacent to attacker's realm	200 prestige	Attacker vassalizes all rulers in target empire within defender's realm whose religion is more tolerated by attacker than defender's, and gains all other counties	Defender keeps their titles	Defender keeps their titles Attacker's factions gain discontent
Restore Imperial Province	Roman Empire title Duchy was part of the Roman Empire Religion is Christian or Greco-Roman	None	Attacker gains all land in the target duchy within defender's realm	Defender keeps their titles	Defender keeps their titles Attacker must pay war reparations

征服宣战理由

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The following CBs are only available to rulers who have clan or tribal government or whose faith has the Warmonger or Pursuit of Power tenets.

• If the war ends by enforcing demands, the attacker will gain the target title and fame equal to the war contribution share.
• If the war ends by white peace, the defender keeps the target title and the attacker loses 75  prestige.
• If the war ends by surrender, the defender's keeps the target title and the attacker must pay  gold and gain +25 faction discontent.

Objective rank	Required level of fame	Same faith cost	Different faith cost	War contribution share	Once per lifetime
County伯爵领	崭露头角	50 if character has tribal government 100 if character has clan government	75 if character has tribal government 150 if character has clan government	75
Duchy公国	赫赫有名	250 if character has tribal government 500 if character has clan government	375 if character has tribal government 750 if character has clan government	150
Kingdom王国	高贵之人	2000	2000	350

圣战宣战理由

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The following CBs will cause a holy war instead of a regular one. They require the faith to be organized and to not have the Pacifism or Dharmic Pacifism tenets, and can only target rulers whose faith is considered hostile or evil.

• If the war ends by enforcing demands, the attacker will gain all titles held by rulers of different faith and vassalize all rulers of the same faith in the target region.
• If the war ends by white peace, then the defender keeps all their titles and the attacker loses 50 piety.
• If the war ends by surrender, then the defender keeps all their titles, its faith gains fervor equal to the attacker's cost, and the attacker must pay  gold and gain +25 faction discontent and −15 vassal opinion for 5 years.

Objective rank	Required level of devotion	Fervor cost	Piety cost (without Armed Pilgrimages tenet)	Piety cost (with Armed Pilgrimages tenet)	War contribution share	Once per lifetime
County伯爵领	恭顺尽责	3	100	80	100
Duchy公国	虔诚信者	5	200	160	200
Kingdom王国	美德典范	10	750	600	500

迁徙至潘诺尼亚宣战理由

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Migrate to Pannonia is a unique casus belli with special mechanics that can only be used once per game by characters of Táltosist faith who make the Prepare to Cross the Carpathians decision against characters in the Pannonian Basin region. If the Hungarian Migration game rule is set to Immediate the game will start with the casus belli being used by Grand Prince Álmos Ügyekfi of the Mogyër Confederation against King Boris of Bulgaria.

If the war ends in white peace, the defender keeps his or her titles. If it ends in surrender, the attacker's factions will also gain discontent. If the war ends by enforcing demands however it will have the following effects:

• Attacker gains all titles held by the defender in the Pannonian Basin region
• Attacker gains the Kingdom of Hungary title, which replaces Kingdom of Pannonia
• Any other kingdom title held by the attacker is destroyed
• Any held title that is not within the de jure realm of Kingdom of Hungary is given to another character
• All vassals that are not within the de jure realm of Kingdom of Hungary become independent
• All controlled counties convert to Mogyër culture and Táltosist faith
• All previously controlled counties convert to Pecheneg culture

When the casus belli is used it will spawn the following army for as long as the attacking character lives:

年份	Levies	Horse Archers
867-889	3000	2000
890-904	5000	3000
905+	6000	4000