Of the four sections, Yu Fei had already completed Human General Education, Knowledge of Other Races and Realms, and The Yu Kingdom's Military System and Conventional Superpowered Weapons. Only the final section, Interdimensional Warfare, remained.
These 187 courses detailed over two thousand wars fought across realms and in the Exotic Origin Realm over the past millennium. Yu Fei was already more than halfway through, but the more he learned, the more solemn his expression became.
Throughout history, humanity's strategy had shifted from passive defense to proactive offense, but Yu Fei discovered that the alien races had only grown larger in number and stronger in power.
