Empires & Allies is an online mobile game, military strategy game, that puts the weapons of modern war at your fingertips in a never-ending battle to conquer the world, is free to play on Android and iOS devices, from Zynga.
Download the game at:
https://play.google.com/store/apps/details?id=com.zynga.empires2
https://itunes.apple.com/app/empires-and-allies/id898838405