Although expensive and only available once Medium Tanks can be mass-produced, a Medium Tank Army strategy can prove gratifying for any player that is able to pull it off. Early-game, Infantry dominates the armies of nations, and most rely on them. Light Tanks begin to make appearances, although few players ever replace Infantry completely with Light Tanks; if this was your strategy, consider instead replacing your Infantry with Motorized Infantry. With the Medium Tank Army, the primary objective is replacing the mainstay of your army, usually Infantry or Motorized Infantry, with Medium Tanks. The unmatched versatility of Medium Tanks at this level makes them a perfect replacement for Infantry for anyone who can afford the change. Armoured units are often less apt to damage by unarmoured units, and the Medium Tank provides excellent firepower against both, giving you an almost unfair advantage in almost every battle. However, this strategy is not advised for inexperienced players that don't fully understand the game, or for players who can't afford the production costs, Oil upkeep, or time to replace their military mainstay with Medium Tanks.