省份

参见：省份列表

省份（Province）是《钢铁雄心4》的最基本地理单位。地区由一组省份组成。

所有省份的地图，按地形着色

胜利点

每个省份至少值 1 胜利点。重要城市的胜利点要比普通省份多，这些便是地图上命名的省份。当敌人持有一个国家原有胜利点的百分比高于该国的投降限制时（通常为 80％ ），该国便会投降。

例如，布雷斯特是一个价值 20 胜利点的命名省份，如图所示。

胜利点也将产生少量补给，即使从主要补给路线被切断，也可以让大量的敌人获得补给。这并不意味着这些单位将获得新的装备。

敌人的胜利点也会为每个胜利点产生 + 0.1％ 抵抗力。[Resistance|[抵抗力]]在地区一级计算。

Capital

Each country has a predefined capital state, of which the capital province is the province with the most Victory Points in that state. If the original capital city is occupied, the capital usually moves to the city with the next-highest number of Victory Points.

The Supply Area which the capital state belongs to also acts as the source from which supply flows. Specifically, supply can flow from any province in that state, so if the state (or all remaining provinces the home country holds in that state) is surrounded, supply for that country will essentially cease to exist.

Construction

主条目：Construction

Forts, Naval Forts and Naval Bases are built at the province level. The attacker gets a malus of +15% per fort level being attacked. Naval Bases allow ships to repair if they dock there, as well as acting as a base for naval transports and naval invasions.

Terrain

主条目：Terrain

Terrain is handled at the province level. Terrain modifies how long it takes to traverse a province, how much attrition units take there and the attack penalty based on terrain modifiers of the attacking party. Some unit types also get bonuses or penalties depending on terrain.

Weather

主条目：Weather

Weather is partly handled at the province level. Provinces can get modifiers like snow or mud, that increase attrition and movement cost. Temperature is also logged at province level. A very high or very low temperature leads to attrition and other penalties.

Use nuclear bomb

主条目：Nuclear bomb

When conditions are met, a nuclear strike can be ordered for a selected province. Nuking a province will heavily damage the state's infrastructure as well as all the units in the nuked province.

机制 

事件与决议

事件 • 决议