Combat Outpost

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- Fortified defensive position - Reduces attackers combat strength - Increases basic population morale in province - Building destroyed when conquered by another player

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Combat Outpost
Build Time	1 hour
Build Cost	500 750 2000
Hitpoints	10
Unit Damage	-33%
Morale Boost	+10%
Daily Upkeep	100

Combat Outpost
Build Time	4.5 hours
Build Cost	750 875 2750
Hitpoints	15
Unit Damage	-50%
Morale Boost	+13%
Daily Upkeep	110

Combat Outpost
Build Time	?
Build Cost	1000 1000 3500
Hitpoints	20
Unit Damage	-65%
Morale Boost	+15%
Daily Upkeep	120

Combat outposts provide quick protection for units outside of cities. They are useful to stop hostile units before they travel into a city, thus preventing battles from occurring in a city and lowering that city's morale and population.

Damage Reduction Calculation

Damage reduction is inversely additive. For example, units in a city with a level 1 combat outpost giving -33% damage reduction (so 0.67x multiplier on damage taken, meaning health is effectively 1/0.67 = 1.5 -> +50%) and with an entrenchment bonus of -25% damage reduction (so 0.75x multiplier on damage taken, meaning health is effectively 1/0.75 = 1.33 -> +33%) will have an effective health boost of +50%+33% = +78%, which is a 1/1.78 = 0.55x multiplier on damage taken and thus a -45% damage reduction.

Damage Reduction Table

Combat Outpost Level	Damage Reduction Without Entrechment	Damage Reduction With Entrenchment
1	-33%	-45%
2	-50%	-57%
3	-65%	-69%

Note: due to rounding, the calculation may not be exact. The game's final calculation is the correct one.