I Transmigrated to the Age of Cold Weapons, Only to Awaken the Red Alert System

[Transmigration to Another World + Rise to Power + System + Mass Recruitment + Clash of Two Civilizations + Fantasy] Wang Zheng transmigrates to a continent in another world and becomes the lord of a small domain. He bears a deep grudge: his predecessor's father died during an invasion by a foreign country. He is reborn among piles of corpses and awakens the Red Alert System at the brink of death. When he comes to, he is told that a foreign nation has invaded. “I have peerless experts fighting at my side. Don't panic, we will win this battle.” “I will take back the two towns occupied by the enemy. Fear not, my friend, we will win this battle.” “I will counterattack the enemy nation. Keep up the good work, everyone. We will win this battle.” After destroying the enemy nation, Wang Zheng founds a country and becomes its king, embarking on the path to build up a small nation and make it a hegemon. As he gradually rises to power, he discovers that this world is far more than the cold weapon era with martial artists he first imagined. A mysterious, strange, and magnificent new world begins to unfold before him. “Everyone, you've made it this far through the blurb. Why not dive into the story and watch me, Wang Zheng, slay gods with nuclear weapons?”