The alliance will help you unite with friends and allies under a common banner and help each other out in various ways. To number just some of the benefits of an alliance: Your friends within the alliance can help you out constructing buildings, There are various technologies that aid all commanders in that alliance, Better mines become available to gather from and much more.
A closely united alliance is a sure formula for success. Help each other and contribute to your alliance to get on top of the competition.
Note: If an Alliance Leader was inactive for 3 days, he or she will automatically be demoted. In the case where there is no other R5 member assigned, the next member of highest rank will automatically be promoted to Leader. Additionally, if an Alliance did not have any active members for 3 days, the Alliance will be automatically disbanded. All members will be removed from the disbanded alliance and all buildings will be removed from the world map.