Hand over the National Alien Space! Revenge 1937

Parallel world! Military University student Lu Chen accidentally awakened to an "alien space" on the eve of his graduation exam. The novice gift package turned out to be a portal. Behind the door are not only bloody mountains and rivers, but also a sea of ​​broken stars. Soldiers should be the strong shield of the country and the world, and Lu Chen did not hesitate to hand over the system to the country. That's it! The "Tinder Plan" launched by China A team of ghosts composed of tactical elites, using modern weapons to perform the most sophisticated historical surgeries. The world thought that China was still catching up, but Lu Chen had exchanged the system for future technology. When the alien fleet arrives in the solar system and arrogantly declares the end of human civilization. They were horrified to find that the seemingly backward Blue Planet fleet had tactics that seemed to predict the future, and its technology tree was ridiculously advanced. Lu Chen: "Peace cannot be said! It must be fought!" Time travel + technological climbing + interstellar warfare