In army games, you have various complicated missions to accomplish. You should train your warriors, select the firearms and melee weapons for them, teach them the usage and take strategies to defeat enemies. You should select the best hidden place and shoot enemies at appropriate time. It's also important to defend your warriors. Once you trounce the enemy troops, you can win the battle.
Army Games are games that allowing users to play games with cannon, rifle, bomb, fighter plane or tank for free. Most of them are 3D army games, but still, there are some 2D games. All of them are online for free, you do not need to down and install them.