Team player Achievement
Make an alliance or join one
This quest is unlocked from the start, so you can do this any time. You will need to be in an alliance for some of the other quests, so it is advised to join one rather than create one. You can join an alliance by a friend inviting you to one, or by finding somebody in an alliance and sending them an application from their profile. If you want to knock it out quickly, just go to the Alliance menu and creating one. Note that you cannot be in more than one alliance at a time, so if you do this you will need to leave it. Go to Alliance, then Members, select your own name and hit Leave Alliance.