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Alliances in Battle Of World: How to Choose, Run and Leave One

Published 6 November 2026

In short: An alliance in Battle Of World lets rulers share radar, send each other resources, and defend each other's colonies, and alliances compete for the ten relics that decide each era. Join an open alliance, accept an invitation, or found your own.

Eras are won by alliances, not by lone rulers. The alliance you pick will decide who protects you, who you fight, and whether you are holding relics when the era ends.

Joining or founding one

You can join an alliance that is open to applications, accept an invitation, or found your own and invite others. Every alliance has a leader, and members can vote to change who leads.

What allies do for each other

Choosing well

Look for an active leader, members near you on the map, and an alliance big enough to defend itself but not so crowded that nobody notices you. Ask what they expect: some alliances want every member on the front line, others want builders and scouts.

Leaving, or being removed

If you leave an alliance, your squads parked at former allies' sites come home, and their squads parked at yours go home too. If you are removed by the leader, squads stay where they are. After leaving, you have to wait before joining another alliance, so do not leave on a whim.

New to the game? Start with our beginner's guide.

Questions

What happens to my squads if I leave my alliance?

Your squads parked at former allies' sites come home, and their squads parked at your sites go home too.

What happens if I am removed from an alliance?

If the leader removes you, squads parked at each other's sites stay where they are.

Can I send resources to my allies?

Yes. You can send resources to members of your alliance, after a short wait once you have joined.

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