" Summoning an Army " was a science fiction novel about a virtual world called " Azeroth " created and managed by a group of humans with powerful summoning abilities. These humans discovered that they could increase their strength by summoning thousands of troops and horses, and began to apply this ability to war and conflict. The main character of the story was a summoner named Arwen. Together with other summoners, he created a team called the Paladins to protect humans and neutral forces in the world of Azeroth. However, as the war progressed, the Holy Knights faced threats from other races and gradually realized that they needed to adopt more effective strategies to deal with these threats. In the story, Arwen and his paladins faced various challenges and difficulties, including battles with other summoners, confrontations with races, and conflicts with other organizations. They must constantly explore and discover new summoning abilities to maintain their strength and competitiveness, and to uphold justice and protect the safety of humans in the world of Azeroth.