Age of Origins: How to Use the Alliance Cannon Skill

In Age of Origins, the Alliance Cannon is an active leadership skill that bombards an enemy city directly on the world map. Firing the cannon strips defensive wall durability instantly and sets the target base on fire without sending a march or risking your troops. When a target city's wall defense falls to zero, the game forces that city to teleport randomly away from your territory.

Requirements and Activation Permissions

Only Rank 4 (R4) officers and the Rank 5 (R5) alliance leader have permission to trigger the Alliance Cannon. General members can locate and scout targets, but they cannot cast the ability.

Before leadership can deploy the skill, the alliance must meet two conditions:

Technology Research: The Cannon skill must be unlocked within the Alliance Technology tree using collective member donations.
Alliance Points: Each activation consumes Alliance Points accumulated through member activities and daily tech donations.

Steps to Target and Fire the Cannon

Ensure your target is unshielded and positioned inside or adjacent to your alliance territory boundaries before firing.

Locate the Target City: Find the hostile commander on the map and confirm they do not have an active Peace Shield.
Open Alliance Skills: Tap the Alliance menu on the main interface, navigate to the active skills section, and select the Alliance Cannon.
Verify Readiness: Check that the skill is off cooldown and that your alliance has sufficient points, then tap Use.
Select the Coordinates: Move the targeting reticle over the enemy city on the world map, or select the city directly and choose the cannon option from the interaction menu.
Confirm the Strike: Confirm the prompt. The bombardment fires instantly, landing direct damage on the target structure.

Combat Mechanics and City Eviction

The Alliance Cannon bypasses standard combat calculations, dealing fixed structural damage instead of clashing armies.

Combat Factor	Direct Ground Attack	Alliance Cannon Strike
Troop Loss Risk	Traps and defenders can wound or kill units	Zero troop risk
Travel Time	Requires march time to travel across the map	Applies instantly upon confirmation
Wall Defense Damage	Depends on fleet battle outcome and siege stats	Deals fixed, massive wall durability reduction
Activation Access	Any player with an open march queue	Restricted to R4 and R5 officers

A direct strike reduces wall durability immediately and ignites the city. The resulting fire inflicts continuous damage over time, speeding up the eviction process. This mechanic is particularly effective against heavily fortified bases or high-level spenders whose defensive garrisons would otherwise cause massive casualties during standard fleet rallies.

Operational Constraints

Coordinate with fellow officers before activating the cannon to avoid wasted resources:

Peace Shields Block Damage: The skill cannot target or damage a city protected by an active Peace Shield. Firing cannot pierce or bypass standard defensive shields.
Skill Cooldowns: After firing, the cannon enters a mandatory cooldown that lasts several hours, depending on your alliance's tech progression.
Target Relocation: Do not cast the skill if an enemy is already actively teleporting away, as the strike and spent points will be wasted once the city leaves the coordinates.