Peace treaties are concluded in the same way trade agreements are. They have to be offered, accepted, and concluded. A roll of parchment with a cannon represents them.Here, once again, one player has to offer another a peace treaty so that the other player can accept it. The unrolled parchment indicates a signed peace treaty.To break a treaty, click the unrolled parchment.
Signing peace helps you protect your convoys and your settlements from attack.
If you attack one of the other players, or land soldiers on one of his islands, the peace treaty is automatically broken and war declared.