effect · `set_demilitarized_zone`

Definition

Supported scope:STATE
Supported target:none

Description

sets the demilitarized status for currently scoped state

实战 · 配合 · 坑

实战内容由 AI 生成,并已对照 vanilla 命令词表校验 —— 请当作起点而非权威依据。上方的定义节才是游戏自带文档原文。

实战用法

set_demilitarized_zone 常用于和平条约 mod、战后结算事件或条件触发的外交系统中，将特定州设为非军事区以模拟真实历史协议（如莱茵兰非军事化）。也可在 scripted_effect 里批量处理多个州，实现"大国强制解除武装"类玩法。

# 在和平事件 option 中，将某州设为非军事区
option = {
    name = peace_event.1.a
    # scope 已为目标 STATE
    set_demilitarized_zone = yes
    set_occupation_law = dmz_administration
}

配合关系

[is_demilitarized_zone](/wiki/trigger/is_demilitarized_zone) — 在执行前先检查该州当前是否已是非军事区状态，避免重复触发或逻辑冲突。
[remove_building](/wiki/effect/remove_building) / [damage_building](/wiki/effect/damage_building) — 非军事区通常伴随拆除或破坏军事建筑，两者组合可还原历史上的裁军条款。
[add_state_modifier](/wiki/effect/add_state_modifier) — 同步叠加一个自定义 modifier，为非军事区添加额外的游戏机制惩罚或加成（如减少驻军消耗）。
[set_state_flag](/wiki/effect/set_state_flag) — 打上标记旗，供后续事件或 decision 通过 [has_state_flag](/wiki/trigger/has_state_flag) 检测该州是否曾被非军事化，实现多步剧情链。

常见坑

scope 写错：该 effect 必须在 STATE scope 下调用，若误写在 COUNTRY scope 里（如直接放在国家事件 immediate 块而不先切换 scope）会静默失效，且日志不一定报错，导致效果不生效难以排查。
只设标记、忘记配套逻辑：set_demilitarized_zone 本身只改变非军事区标志位，并不自动阻止建造或移除已有部队——玩家仍可在该州建造和驻军，需配合 decision/trigger 主动限制，否则"非军事区"在游戏里形同虚设。

Hands-On Notes

Hands-on notes are AI-generated and checked against the vanilla command vocabulary — treat them as a starting point, not authoritative reference. The definition above is the game's own documentation.

Hands-On Usage

set_demilitarized_zone is commonly used in peace treaty mods, post-war settlement events, or conditionally triggered diplomatic systems to designate specific states as demilitarized zones, simulating real historical agreements (such as the Rhineland demilitarization). It can also be batch-processed within scripted_effect to handle multiple states, enabling "great power forced disarmament" gameplay mechanics.

# In a peace event option, set a state as a demilitarized zone
option = {
    name = peace_event.1.a
    # scope is already the target STATE
    set_demilitarized_zone = yes
    set_occupation_law = dmz_administration
}

Synergy

[is_demilitarized_zone](/wiki/trigger/is_demilitarized_zone) — Check whether the state is currently already a demilitarized zone before execution to avoid duplicate triggers or logical conflicts.
[remove_building](/wiki/effect/remove_building) / [damage_building](/wiki/effect/damage_building) — Demilitarized zones typically accompany the removal or destruction of military buildings; combining these effects can recreate historical disarmament clauses.
[add_state_modifier](/wiki/effect/add_state_modifier) — Stack a custom modifier simultaneously to add additional game mechanics penalties or bonuses to the demilitarized zone (such as reduced garrison costs).
[set_state_flag](/wiki/effect/set_state_flag) — Set a flag marker for subsequent events or decisions to detect via [has_state_flag](/wiki/trigger/has_state_flag) whether the state has been demilitarized, enabling multi-step story chains.

Common Pitfalls

Incorrect scope: This effect must be called under STATE scope. If mistakenly written in COUNTRY scope (such as directly placed in a national event's immediate block without first switching scope), it will silently fail without necessarily producing log errors, making the effect non-functional and difficult to debug.
Setting the flag but forgetting supporting logic: set_demilitarized_zone itself only changes the demilitarized zone flag; it does not automatically prevent construction or remove existing armies — players can still build and garrison troops in that state. This requires active restriction through decision/trigger logic; otherwise, the "demilitarized zone" becomes meaningless in gameplay.

effect · set_demilitarized_zone