I Transmigrated to the Ancient World, With a Nation Backing Me

[From the start, he reveals he can transmigrate to ancient times, and the country tells him to bring an aircraft carrier.] He obtains a time-space gate that can take him to the past. Every time he returns and changes history, he earns points for the Great Xia's national destiny. These points can be exchanged for technology, culture, and all sorts of other things... Yang Feng figures that if changing the past can strengthen his country in the present, why not enlist the country's help? He reveals that the first world he will transmigrate to is the world of the Great Qin. To his surprise, the country directly tells him to take a world map and an aircraft carrier fleet to meet Qin Shi Huang. Yang Feng is stunned, and so is Qin Shi Huang, who has just unified the Great Qin. "So the world is this vast! Come, join me in unifying the entire world!" [Ding! The Great Qin has unified the world. You have earned one thousand national destiny points.] The second world is the Three Kingdoms. The country has Yang Feng take a motorized mechanized force to help Prime Minister Zhuge Liang launch his northern campaign. [Ding! The northern campaign has succeeded. You have earned two thousand national destiny points.] The third world is the Great Tang. The country has Yang Feng take a heavy combined-arms brigade to help Li Er sweep across the northern deserts. [Ding! The Great Tang has unified the world. You have earned three thousand national destiny points.] The fourth world is the Great Ming... After transmigrating countless times, Yang Feng realizes that there are fewer and fewer countries in the modern world, while Great Xia grows ever stronger.