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This article is about the unit in Age of Empires III: The WarChiefs. For the native unit, see Haudenosaunee Mantlet.

Tough Haudenosaunee support unit used to shield your army from enemy fire.
—In-game description

The Mantlet is a ranged infantry siege unit in Age of Empires III: The WarChiefs that is unique to the Haudenosaunee and can be trained at the Siege Workshop.


The Mantlet has high hit points, very high damage resistance, moderate attack, and powerful siege. However it is slow and short ranged, and also fairly expensive.

Mantlets can help compensate for the relatively low siege that most of the Haudenosaunee units have, taking down walls and fortifications, and allowing other units to continue to fight against enemy units. Mantlets are classified the same as a skirmisher, making them only especially vulnerable to artillery (which their high hit points somewhat compensate for), cavalry (especially lancer-type), and Abus Guns. Grenadiers and Flamethrowers also can pose a threat, though to a lesser extent.

A general use for Mantlets is as a screen for long ranged units. Their incredible hit points and armor lets them tank an immense amount of enemy ranged fire, protecting Forest Prowlers and even Musket Riders, which allows them to do much more damage without taking fire. The disadvantage of this is it drastically reduces the speed and mobility of the army, so it should be used situationally, such as in chokepoints, where mobility is largely irrelevant.

It is important to note that Mantlets are improved by "Infantry Combat" (and Attack and Hitpoints variants) as well as the "Siege Combat" cards. Thus, if wishing to upgrade Mantlets it is ideal to ship "Infantry Combat" first and then "Siege Combat" so that the other infantry units are upgraded too.

With some boost from the War Chief, the Mantlet can have over 1,000 hit points with all upgrades. This allows them to be very effective when deployed in numbers as cannon fodder for protecting units that are weak against ranged damage. With the "Siege Discipline" shipment their population cost is dropped to only 1 which makes mass production of this unit very easy.


Age Upgrade Cost Effect
Age IV tech tree aoe 3.png
Champion iroquois siege unit.png Champion Mantlets 400 wood,
200 coin
Upgrades Mantlets to Champion (+25% hit points and attack)
Imperial Age
Legendary iroquois siege unit.png Legendary Mantlets 1,500 wood,
1,500 coin
Upgrades Mantlets to Legendary (+50% hit points and attack); requires Champion Mantlets

Further statistics[]

As Mantlets are unique to the Haudenosaunee, only technologies that they have access to are shown in the following table:

Unit strengths and weaknesses
Strong vs. Ranged infantry, light cavalry, buildings
Weak vs. Heavy infantry, Shock Infantry, heavy cavalry, artillery
Hit points Cree Tanning.png Cree Tanning (+5%)
Navajo Weaving.png Navajo Weaving (+5%)
Attack Yoga.png Yoga (+5%)
Clenched Fist.png Clenched Fist (+30% melee attack)
Speed Siege Drill.png Siege Drill (+10%)
Inca Road-building.png Quechuan Mountaineering (+20%)
Apache Endurance.png Apache Endurance (+5%)
Creation speed Inca Chaquis Messengers.png Quechuan Diet (-25%)
Train cost Mapuche Ad-mapu.png Mapuche Ad-mapu (-10% coin cost)
Other Merritocracy.png Meritocracy (-20% upgrade cost)

Home City Cards[]

As Mantlets are unique to the Haudenosaunee, only their cards and other civilizations' TEAM cards are shown in the following tables:


Because the Iroquois often fortified their towns, they needed siege weapons when they went to war with rival towns. One technique they developed was the mantlet, similar in function to those used in Roman and medieval armies. Two warriors would carry the mantlet (essentially a moveable wooden wall) to protect themselves from enemy arrow or musket fire until they reached their enemy's town walls, where the mantlet was used as a ladder to scale the walls and breach the town. Canoes could also be used as shields and ladders, although canoes used for assaulting a fortress were not always the best paddling vessels after the fighting was over.