• The one with the least loss wins.
  • Technique:
    • Pay attention to troop matching. The Army restrains Commandos and Navy, Commandos restrain Air  Force and Navy, Air Force restrains Army and Navy, and the Navy is restrained by the Army, Commandos, and the Air Force, but is effective against traps. 
    • The advanced troop has overwhelming advantages over the basic one. It's often true that plenty of basic troops can't defeat a few advanced ones. 
    • Commander skills, tech, and gears can bring troops buffs and increase their battle power. 
    • The number of deployed troops is the best guarantee for victory.
    • Traps are very effective at killing troops; only the Navy can deal massive damage to traps.