On reaching the target territory (enemy), the Attack option will be provided if the target is not under attack already. If the target outpost is under attack by one of your allies, the player will have to wait for this turn till the attack is over and then attack.
The Territory will flash red when an opponent is “ATTACKING”.To initiate the attack for battle, tap on the enemy territory to bring up the contextual menu and select “ATTACK”.
Name of the queued player whose troops have reached the target will be shown in “Incoming Troops” Section. They can attack an outpost by selecting the “ATTACK” option.If there are multiple troops arriving on the same territory, the first one to attack will go into the battle and others will move into a waiting pool. If the battle is over and the enemy outpost has still some health remaining, any player in the waiting pool can initiate an attack. Others will be retained in the waiting pool.If the ownership of the territory a player is marching towards has changed at the time of March or waiting; the player will not be provided with an attack option. He will be provided only with a return option.The Outpost layout of the captured territory will be the same as the player who captured.
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Empires & Allies Game GUIDE