I'm not entirely sure as I haven't read it specifically. But generally, a 'war in the pocket' novel might be about small - scale battles or conflicts that occur in a confined area or among a small group of people during a war.
Since I don't know the specific 'war in the pocket novel', I can't say for sure. But usually, there could be soldiers, like a young and inexperienced private who has to grow up fast in the chaos of war.
Well, 'Gundam War in the Pocket Novel' might be about the struggles and battles within the Gundam universe. Gundam has a vast array of different mobile suits, each with their own capabilities. In this novel, it may show how these mobile suits are deployed in war, the strategies used by the different factions. It might also introduce new characters or expand on the backstories of existing ones, all within the context of a war - torn Gundam - filled world.
Magical Pocket Version was a fantasy role-playing mobile game developed by Tianqing Digital Entertainment. It was officially open beta on March 17, 2014. The game told the story of the demon invasion of the Ater Continent. Players could play the role of warriors, mages, and ability users of the Ater Continent to fight against the demon race with humans and gods to protect the peace of the Ater Continent. The game had magical beasts, gems, and other nurturing elements. It also introduced PVP gameplay such as arenas and army battles.
While waiting for the TV series, he could also click on the link below to read the classic original work of " The Legend of Mortal Cultivation "!