To leave your current alliance:
1) Use the Sociality button (the one with 3 people) in the bottom menu.
2) Choose the button with alliances to see your current alliance.
3) Use the Leave Alliance button that you can find in the same menu.
1) Use the Sociality button (the one with 3 people) in the bottom menu.
2) Choose the button with alliances to see your current alliance.
3) Use the Leave Alliance button that you can find in the same menu.