One King for Israel

God gives a land to the people of Israel as promised, and continues to protect Israel from every enemy. However, attacks on Israel, the country enjoying God's protection, become fiercer than ever. Israel is now comprised of twelve sub-tribes, which are led by twelve brothers respectively. But it seems that they need a king to unite the nation. So Samuel, who is the most respected man in Israel, is asked to choose their king. Samuel says, "If you choose a king, you must be his warrior or slave at his order. Are you really prepared for that?"