[MOD] Island War - Easy win in battle

The world has long been divided into small islands, which immediately entered into a confrontation with each other. You need to make conquering campaigns to the enemy islands, first strengthening the native piece of land. When the user subdues all the island communities, he will become the king. Behind each island is a real gamer, which turns the multiplayer game into an exciting process. Your task is to work out the most effective combat strategy, using different military combinations and order of battle. The outcome of the battle depends only on your general skills.