编辑“战争”

{{Version|3.3}}
{{Warfarenav}}
As long as there is at least one empire present that is not {{iconify|Fanatic Pacifist}}, war is an almost inevitable aspect in any game and can be anything from a small border skirmish to a massive interstellar war of conquest.

Wars are how mid-game and end-game borders are usually drawn.

== Casus belli and wargoals ==
{{SVersion|3.3}}
In order for an empire to start a war, it needs a {{iconify|casus belli}} – a reason to declare war. Each casus belli grants access to at least one type of wargoal, which represents the purpose of the war. Once a war is declared, the attacked empire has a year to choose its wargoals.

Status quo effects do not include the defender's capital. In case of status quo the defender will retain its capital system regardless of occupation.
{| class="mildtable plainlist"
! Casus belli and wargoals
! Requirements
! Surrender acceptance
! width=27% | Victory effect
! width=21% | Status quo effect
|- id="Claim"
| '''Claim'''
*{{icon|war}} Conquer
| Existing [[#Claims|claims]] on the target's systems
|
* {{red|−10}} per system
* {{red|−100}} per colonized system
| Loser cedes all systems with claims to the victor, even if not occupied. All systems occupied by the loser are returned, regardless of claims.
| Each side keeps all systems they have fully occupied if they have claims on them.
|- id="Counterattack"
| '''Counterattack'''
* {{icon|war}} Counterattack
|
* {{iconify|Mutual Defense}} resolution 3
* {{icon|no}}{{icon|Galactic Community}} Target is not a member of the Galactic Community
* {{icon|war}} Target is at offensive war with a Galactic Community member
| '''0'''
| Loser cedes all systems with claims to the victor, even if not occupied. All systems occupied by the loser are returned, regardless of claims.
| Each side keeps all systems they have fully occupied if they have claims on them.
|- id="Subjugation"
|'''Subjugation'''
*{{icon|vassal}} Vassalize
*{{icon|tributary}} Make Tributary
*{{icon|tributary}} Make Subsidiary
| Demand Subject Status diplomatic action was refused
| {{red|−100}}
| Loser becomes a subject of the victor, along with all its vassals (if any). If the empire is part of a federation, they will leave it.
| All systems fully occupied by the attacker will be turned into a subject of the attacker.
|- id="Animosity"
| '''Animosity'''
*{{icon|opinion}} Humiliate
| 
*Rivalry
| {{red|−25}}
| Victor gains 100 {{iconify|influence}}. Loser loses all of its {{iconify|Influence}}, gains {{iconify|influence||−33%|red|monthly influence gain}} and {{iconify|happiness||10%|red}} for 10 years. If the loser had the {{iconify|Supremacist}} Diplomatic Stance policy, it is changed to {{iconify|Belligerent}}.
| Each side keeps all systems they have fully occupied if they have claims on them.
|- id="Imperial Rebuke"
| '''Imperial Rebuke'''
*{{icon|opinion}} Imperial Rebuke
| 
*Rivalry and Galactic Emperor
| {{red|−25}}
| Victor gains 100 {{iconify|influence}}. Loser loses all of its {{iconify|Influence}}, gains {{iconify|influence||−33%|red|monthly influence gain}} and {{iconify|happiness||10%|red}} for 10 years. If the loser had the {{iconify|Supremacist}} Diplomatic Stance policy, it is changed to {{iconify|Belligerent}}.
| None
|- id="Ideology"
| '''Ideology'''
*{{icon|force ideology}} Impose Ideology
|
* {{icon|policy}} War philosophy policy set to ''Liberation Wars''
* {{icon|no}}{{icon|Gestalt Consciousness}} Target is not a Gestalt Consciousness
| {{red|−100}}
| Loser is forced to shift ethics towards those of the victor and will leave a federation if it's part of one. Its ruler is also replaced.
| All systems fully occupied by the attacker will be turned into an empire with the attacker's ethics.
|- id="Punishment"
| '''Punishment'''
*{{icon|opinion}} Humiliate
*{{icon|opinion}} Stop Atrocities
*{{icon|opinion}} Outlaw AI
*{{icon|opinion}} Cleanse Holy Worlds
*{{icon|opinion}} Decontaminate Border Territories
|
* {{icon|elder race}} Only available to fallen empires
* Either the fallen empire's demand was refused or they were rivaled 
| '''0'''
| The refused demands are enforced. If the losing empire is not a {{iconify|Gestalt Consciousness}}, its ruler will also be assassinated by the winning fallen empire, unless they are the Ancient Caretakers. Includes Animosity effects.
| None
|- id="Despoliation"
| '''Despoliation'''
*{{icon|war}} Plunder
| {{iconify|Barbaric Despoilers}} civic
| {{red|−25}}
| Loser loses {{iconify|energy||250|red}} and {{iconify|minerals||250|red}} for every planet they own. Victor will then gain those resources even if the loser didn't have enough. Loser gets {{red|−20%}} {{iconify|Energy}} and {{iconify|Minerals}} for 10 years.
| Each side keeps all systems they have fully occupied if they have claims on them.
|- id="Expropriation"
| '''Expropriation'''
* {{icon|commercial pact}} Expel Corporation
|
* {{icon|No}}{{icon|Commercial Pact}}{{icon|federation}} No shared Commercial Pact or Federation
* Corporate empire has at least one branch office on an owned planet
| {{red|−50}}
| Corporate empire closes all branch offices on the attacker's planets. Attacker gains 1000 {{iconify|energy}} per branch office.
| Corporate empire closes all branch offices on the attacker's planets. Corporate empire gains 1000 {{iconify|energy}} per branch office.
|- id="Hostile Takeover"
| '''Hostile Takeover'''
*{{icon|commercial pact}} Seize Assets
|
* {{icon|Corporate}} Both empires have Corporate authority
* Target has at least one branch office
* {{icon|no}}{{icon|criminal heritage}} Criminal Heritage civic
| {{red|−75}}
| All branch offices on planets whose owners have a commercial pact or federation with victor are transferred to the victor. If loser is part of a federation, branch offices on other members' planets are kept. 
| None
|- id="Claim the Galatron"
| '''Claim the Galatron'''
*{{icon|closed borders}} Take Galatron
|
* [[File:R galatron.png|24px|link=Relics#The_Galatron]] Target empire has the Galatron relic
* {{icon|no}}{{icon|driven assimilator}} Driven Assimilator civic
* {{icon|no}}{{icon|fanatic purifiers}}{{icon|devouring swarm}}{{icon|determined exterminator}} Genocidal
| {{red|−40}}
| Victor gains the Galatron relic and 100 {{iconify|influence}}. Loser loses all of its {{iconify|Influence}} and gains {{iconify|influence||−33%|red|monthly influence gain}} and {{iconify|happiness||−10%|red}} for 10 years.
| Attacker gains 1000 {{iconify|energy}}.
|- id="Hegemon"
| '''Hegemon'''
*{{icon|federation}} Establish Hegemony
| {{icon|Hegemony}} President of a level 3+ Hegemony federation
* {{icon|no}}{{icon|federation}} Target is not in federation
| {{red|−100}}
| Loser becomes a member of the victor's {{iconify|Hegemony}}
| All systems fully occupied by the attacker will be turned into a new member empire of the attacker's {{iconify|Hegemony}}.
|- id="Scion"
| '''Scion'''
* {{icon|vassal}} Bring Into Fold
| {{iconify|Scion}} origin
| {{red|−100}}
| Loser becomes a subject of the Scion's overlord. If the empire is part of a federation, they will leave it.
| All systems fully occupied by the Scion will be turned into a subject of the Scion's overlord.
|- id="Imposed Inclusion"
| '''Imposed Inclusion'''
* [[File:diplomacy_pathofchains.png|24px]] Bring Into Fold
| {{iconify|Become the Crisis}} ascension perk
| {{red|−100}}
| Loser becomes a subject of the victor, along with all its vassals (if any). If the empire is part of a federation, they will leave it.
| All systems fully occupied by the crisis empire will be turned into a new vassal empire of the attacker.
|- id="Trial of Advancement"
| '''Trial of Advancement'''
* [[File:Diplomacy seize council seat.png|24px]] Council Seat
|
* Target is a member of the Imperial Council
* [[File:Resolution create council.png|24px]] By Trial of Advancement resolution
| {{red|−100}}
| The victor replaces the loser in the Imperial Council.
| None
|- id="Imperial Crusade"
| '''Imperial Crusade'''
* [[File:Diplomacy imperial crusade.png|24px]] Force Into Imperium
| [[File:Resolution galactic market.png|24px]] Imperial Crusade resolution
| {{red|−100}}
| Loser joins the Galactic Imperium. If the empire is part of a federation, they will leave it.
| All systems fully occupied by members of the Galactic Imperium will be turned into a member of the Galactic Imperium.
|}

=== Paired wargoals ===
The following wargoals are paired together. If an empire starts a war with either of the paired wargoals the defender will automatically use the other wargoal and cannot pick another one.

Paired wargoals with {{red|−1000}} surrender acceptance lead to a Total War. In Total Wars, all occupied systems automatically change ownership. Their new owner will be the participant with the highest claim count on it or the occupier if none of his allies claim this system.
{| class="mildtable plainlist"
! Casus belli and wargoal 1
! Casus belli and wargoal 2
! Requirements
! Surrender acceptance
! width=24% | Victory effect
! width=22% | Status quo effect
|- id="Subject"
| '''Subject'''
*{{icon|independence}} Independence
| '''Subject'''
*{{icon|vassal}} Assert Overlordship
|
* {{icon|vassal}} Subject and overlord
*{{icon|federation}} Subject not in a federation with overlord
| '''0'''
| If the subject wins, it becomes independent and the former overlord loses all claims on the former subject's systems.
| The subject becomes independent and the former overlord gains claims on the former subject's systems.
|- id="Secession"
| '''Secession'''
*{{icon|independence}} Leave Hegemony
| '''Secession'''
*{{icon|vassal}} Assert Hegemony
| {{icon|federation}} President refused member to leave federation
| '''0'''
| If the attacker wins, it leaves the federation and the president loses all claims on the former member's systems. If the president wins, both empires gain a temporary {{iconify|opinion||−20|red}} towards each other.
| The attacker leaves the federation and the president gains claims on the former member's systems.
|- id="Imperium"
| '''Imperium'''
* {{icon|galactic community}} Restore Community
| '''Imperium'''
* {{icon|galactic imperium}} Crush the Rebellion
|
*{{icon|nem}} ''Imperium: Spark Rebellion'' operation
| '''0'''
| Losers gain {{red|-60%}} {{iconify|Diplomatic Weight}} for 6 years. If the attackers win the Galactic Imperium becomes the Galactic Community again. If the defenders win the Galactic Imperium gains 100 Authority.
| All attackers leave the Galactic Imperium and form a federation.
|- id="Subjugation"
| rowspan=5 | '''Containment'''
*{{icon|war}} End Threat
| '''Subjugation'''
*{{icon|vassal}} Domination
| {{icon|yes}} Awakened Empire
| rowspan=9 | {{red|−1000 (Total War)}}
| rowspan=9 | Victory can only be achieved by conquering all colonized systems of the opposition, ending the opposing empire. If a defeated empire had starbases in uncolonized systems that were not conquered, they are removed, making the territory neutral again.
| rowspan=9 | Each side keeps all conquered systems.
In case of the ''Existential Expulsion'' war goal, uncolonized systems become neutral during the war.
|- id="Purification"
| '''Purification'''
*{{icon|war}} Cleansing
| {{iconify|Fanatic Purifiers}} or {{iconify|Determined Exterminator}}
|- id="Hunger"
| '''Hunger'''
*{{icon|war}} Absorption
| {{iconify|Devouring Swarm}}
|- id="Sublimation"
| '''Sublimation'''
*{{icon|war}} Assimilation
| {{iconify|Driven Assimilator}}
|- id="Existential Expulsion"
| '''Existential Expulsion'''
*[[File:diplomacy_pathofblood.png|24px]] Wipe Them Out
| {{iconify|Become the Crisis}} ascension perk
|- id="Colossus"
| '''Colossus'''
*{{icon|rival}} Colossus
| '''Stop Colossus'''
*{{icon|rival}} Stop Colossus
| {{icon|apc}} Either empire has a Colossus
|- id="Preemptive War"
| '''Preemptive War'''
*{{icon|rival}} Preemptive War
| '''Self-Defense'''
*{{icon|rival}} End Threat
|
* {{iconify|Mutual Defense}} resolution 5
* {{icon|no}}{{icon|Galactic Community}} One empire is ''not'' a member of the Galactic Community
|- id="Crisis War"
| '''Crisis War'''
* [[File:diplomacy_pathofblood.png|24px]] Crisis War
| '''Crisis War'''
* [[File:diplomacy_pathofblood.png|24px]] Crisis War
|
* [[File:Resolution declare crisis.png|24px]] Declare Crisis resolution
* {{icon|no}}[[File:Resolution declare crisis.png|24px]] Repeal Crisis resolution
|- id="War in Heaven"
| '''Event'''
* {{icon|lev}} War in Heaven
| '''Event'''
* {{icon|lev}} War in Heaven
| {{icon|lev}} Awakened Empire
|- id="Machine Uprising"
| '''Event'''
* {{icon|snd}} Machine Uprising
| '''Event'''
* {{icon|snd}} Machine Uprising
| {{icon|snd}} Creator empire and [[AI rebellion]]
| {{red|−1000 (Total War)}}
| Victor gains 2000-6000 {{iconify|Unity}} and 200-600 {{iconify|Influence}}. Victory can only be achieved by conquering all colonized systems of the opposition, ending the opposing empire. If a defeated empire had starbases in uncolonized systems that were not conquered, they are removed, making the territory neutral again.
| Each side keeps all conquered systems.
|}

== Claims ==
{{SVersion|3.3}}
While casus belli and wargoals represent the purpose of a war, '''claims''' represent territorial ambitions — the systems which will be controlled by the victor. Which systems can be claimed depends on an empire's {{icon|policy}} [[War Philosophy]] policy, with the Unrestricted Warfare philosophy allowing for the claiming of any system not owned by a fellow {{iconify|Federation}} member. It is possible to claim the same system multiple times to gain a stronger claim on it, which can outbid the competing claims of allies when going to war together. If multiple empires have the same number of claims on a system the oldest claim is considered the strongest. In general claims are expensive in the early game and become less so later on to allow for more decisive wars to be fought. Claims cannot be rescinded while at war.

Claims have a base cost of 50 {{iconify|influence}}, modified by the following:
# Additive costs:
#* {{red|+25}} per hyperlane distance from owned territory
#* {{red|+25}} if the system has an upgraded {{iconify|Starbase}} (i.e. not just an Outpost)
#* {{red|+25}} if the system is colonized
# Additive multipliers:
#* {{red|+100%}} {{icon|war}} during an offensive war
#* {{green|–10%}} {{icon|agenda}} Expansionist Overtures {{icon|Ruler leader}} Ruler agenda
#* {{green|–10%}} {{icon|policy}} {{iconify|Belligerent}} or {{iconify|Supremacist}} [[Diplomatic Stance]] policy
#* {{green|–10%}} {{iconify|Interstellar Campaigns|21px}} technology
#* {{green|–10%}} {{iconify|Galactic Campaigns|21px}} technology
#* {{green|–10%}} {{iconify|Martial Alliance}} federation level 2 perk
#* {{green|–10%}} {{iconify|Militarist}} ethic
#* {{green|–15%}} {{iconify|Nationalistic Zeal}} civic
#* {{green|–20%}} {{iconify|Fanatic Militarist}} ethic
#* {{green|–20%}} {{iconify|Interstellar Dominion}} ascension perk
#* {{green|–20%}} {{iconify|Khan's Throne|24px}} relic
# {{green|–20%}} {{icon|Rivalry}} if the system is owned by a Rival (multiplicative, after other multipliers)
If the modifier reaches a total of {{green|–100%}}, claims then cost 0 {{iconify|influence}}.

Defenders can freely claim systems owned by their attackers in a defensive war regardless of their War Philosophy policy. Any system lost by any side during a conquest war or total war will give the former owner 10 claims on it.

Winning war with any non-conquest wargoals will always enforce all claims made by the victorious empires before any other effects, regardless of whether these systems were occupied. For example, an empire winning a war with the subjugation wargoal will annex all claimed systems from the loser before making a {{iconify|Vassal}} of the loser's remaining systems.

== Federation warfare ==
The Federation is the more serious counterpart of the Defensive pact and the inviting attackers mechanic. While it does offer a unique amount of defensive cooperation, builds trust and allows military cooperation using the federation fleet, establishing a conquest strategy can be made very difficult because of the need for consent of the members to declare war, and each member's expectation of a fair share of spoils from each war. The empire that wishes to declare war can ask the other federation members for their war goals by using the "Suggest Demands" button. However, AI empires will be very hesitant to declare war on empires that are much stronger than them or have very powerful allies. In that case, the "Suggest Demands" button will not give any results.

One exception to this are wars of liberation or to a lesser extent vassalization: usually AI will agree to a liberation war even if all the war goals are assigned to the player. The resulting splinter empire could then be vassalized and later integrated by the player.

In case a federation member is attacked, all allies automatically join the war as defenders without need for a further declaration of war. In this case, the member being attacked has a free hand in choosing federation war goals, which might be all in its own favor.

== War exhaustion ==
{{SVersion|3.3}}
War Exhaustion goes from 0% to 100%, and measures the total weariness and attrition suffered by all empires on one side in a war. War exhaustion goes up from suffering losses during space and ground warfare, destruction of planets (either from Colossus weapons or {{iconify|Armageddon}} Bombardment), and a passive accumulation over time called Attrition. When a side's war exhaustion hits 100% they can be forced into a status quo peace after 24 months. The speed at which war exhaustion accumulates is influenced by factors such as ethics, traditions, technology and the amount of claims being pressed - an empire that is fighting to hold onto a handful of border systems will tire faster in a costly conflict than one whose very independence is being threatened. War exhaustion also means that an empire that is losing a war can still fight to minimize their territorial losses by inflicting high war exhaustion on the enemy.

War exhaust gain can be reduced by the following:
{| class="mildtable"
! Source
! Reduction
|-
| {{iconify|Media Conglomerate}} civic
| {{green|−5%}}
|-
| {{iconify|Nationalistic Zeal}} civic
| {{green|−10%}}
|-
| {{iconify|Interstellar Campaigns|24px}} technology
| {{green|−10%}}
|-
| {{iconify|Galactic Campaigns|24px}} technology
| {{green|−10%}}
|-
| {{iconify|Belligerent}} diplomatic stance
| {{green|−10%}}
|-
| {{iconify|Supremacist}} diplomatic stance
| {{green|−20%}}
|-
| {{iconify|Gestalt Consciousness}} ethic
| {{green|−20%}}
|-
| [[File:Resolution rules of war.png|24px]] Rules of War resolution 2
| {{green|−5%}}
|-
| [[File:Resolution rules of war.png|24px]] Rules of War resolution 3
| {{green|−10%}}
|-
| [[File:Resolution rules of war.png|24px]] Rules of War resolution 4
| {{green|−15%}}
|-
| [[File:Resolution rules of war.png|24px]] Rules of War resolution 5
| {{green|−20%}}
|-
| [[File:Tradition_unyielding_never_surrender.png|24px]] Never Surrender tradition
| {{green|−25%}}
|-
| [[File:Menace.png|24px]] Crisis level 2
| {{green|−75%}}
|}

== Ending wars ==
Wars can end in two ways: With the surrender of either side or with a negotiated Status Quo peace.

'''Surrender''' means that the victor's wargoal is enforced; any claims the winning side has on the losing side are automatically ceded regardless of occupation status and the defeated empire is forced to keep borders open towards the attacker for 10 years. All wars except those of independence have a negative surrender acceptance, which are countered by factors such as relative navy strength (up to +50), war exhaustion (up to +100) and occupation percentage (up to +100). If an empire and all of its allies (if any) has lost control of all of its systems and/or planets during the war, then a surrender will occur automatically.

'''Status Quo''' means that the war has reached a point where neither side is able to score a decisive victory against the other or all wargoals have been achieved decisively before any major battles took place, and both sides agree to cease hostilities and settle for whatever gains or losses they have acquired/suffered. Under a Status Quo peace, all '''fully''' occupied systems claimed by a belligerent empire are ceded to the belligerent with the strongest claim. In the case of a tie, whoever has the oldest claim on the system is considered the stronger claimant. In addition both sides must keep their borders open towards each other for 10 years. Since AI won't surrender to a Total War, they can end only in Status Quo or the destruction of one empire. Status Quo can be enforced by either side as soon as 24 months have passed since the opposing side reached 100% war exhaustion, and if both sides reach 100% war exhaustion, the Status Quo is enforced automatically after 24 months.

== War names ==
Wars will always be named after the attacker and the defender, followed by one of the following names depending on the wargoal:
{| class = "mildtable plainlist"
! Name !! Wargoal !! Other requirements
|-
| War
| Any
| Offensive war against a Fallen Empire
|-
| 
* Federation War
* Galactic War
* Great War
* War of the Alliances
| Any
| War between two Federations
|-
| 
* Annexation Attempt
* Territorial Invasion
* War of Aggression
* War of Conquest
| Conquer
| 
|-
| 
* War of Beliefs
* War of Ideologies
* War of Philosophies
| Impose Ideology
| 
|-
| 
* Border War
* Confrontation
* War of Humiliation
* War of Rivalry
| Humiliate
| Regular empire
|-
| Punitive Expedition
| Humiliate
| Fallen Empire
|-
| Anti AI Police Action
| Outlaw AI
| 
|-
| Buffer Zone Creation
| Decontaminate Border Territories
| 
|-
| Holy Purge
| Cleanse Holy Worlds
| 
|-
| Moral Intervention
| Stop Atrocities
| 
|-
| 
* Freedom Struggle
* Independence War
* Secessionist War
* War of Independence
* War of Liberation
| Independence
| 
|-
| 
* Servitude Campaign
* War of Obedience
* War of Overlordship
* War of Subjugation
| Vassalize
| 
|-
| Tributary War
| Make Tributary
| Not {{iconify|Corporate}} authority
|-
| Enforced Sponsorship
| Make Tributary
| {{iconify|Corporate}} authority
|-
| The War In Heaven
| War in Heaven
| 
|-
| 
* Intervention War
* Preemptive Action
* Preventative War
* Self Protection War
| End Threat
| 
|-
| 
* War of Cleansing
* Xeno Filth Removal
* Xeno Purification
| Cleansing
| {{iconify|Fanatic Purifiers}} civic
|-
| 
* Extermination Campaign
* Organic Disinfection Program
* Organic Euthanization War
| Cleansing
| {{iconify|Determined Exterminator}} civic
|-
| 
* Absorption War
* Biomass Accumulation
* Great Gorging
| Absorption
| 
|-
| Machine Uprising
| Machine Uprising
| 
|-
| Subsidiary Acquisition
| Make Subsidiary
| 
|-
| Hostile Takeover
| Hostile Takeover
| 
|-
| 
* Embargo War
* Expulsion War
* War of Expropriation
| Expel Corporation
| 
|-
| War for the Galatron
| Take Galatron
| 
|}

{{ConceptsNavbox}}
[[Category:游戏概念]]
[[Category:战争]]
[[en:Warfare]]