There are two Egyptian towns on this map: Re, which is on the same island as you, and Ramesses, over the sea. Both will have to be defeated. They start off with more developed towns, so defense should be the first order of business. Building Scout Ships will protect you from the sea, but since the only way into your town is across shallows, they can protect you here, as well. With a few towers, you should have a solid defense. Since you can't reach the Iron Age, Chariot Archers are the most powerful ranged units available to you. With a few Stone Throwers, you have a solid attacking force.