As Tang's Crown Prince, I Got a World War II Arsenal from the Start

The winter of the fourth year of Zhenguan was bitterly cold. Ten-year-old Li Chengqian fell from his horse. When he awoke, the body of the Tang dynasty's crown prince contained the soul of a top military academy graduate from a later age.

The agony in his leg mingled with the dread in his heart. But what chilled him most were the clear images in his memories: someone had deliberately tampered with his riding gear. Li Tai's childish face, with its barely concealed smugness, and the fleeting disappointment in his father Li Shimin's eyes pierced his heart like knives.

Just as the crown prince was giving up on himself because of his leg injury and growing increasingly gloomy, a cold, mechanical voice sounded in his mind: [Host's intense desire to survive and bring about change detected. The “Myriad Worlds Prize Draw System” is now activated... Beginner's gift pack unlocked.] The protagonist's consciousness entered a vast space. Mauser rifles, Maxim guns, mortars, crates of grenades, radios, field medical kits, and even an ammunition-reloading production line and several basic military engineering manuals. These cold steel objects gave off a faint glow in the dim System space. They were his means to survive, stand back up, and sweep away every obstacle.