Songhu Is a Polished Commander, the More Soldiers He Fights, the More Soldiers He Fights?

[Traveling through the war of resistance + system summoning + from polished commander to warlord + decisive killing + brainy + cool writing + farming and development] 1937, Battle of Songhu. Chen Rong traveled through time and became the acting division commander of the newly formed 7th Division of the 19th Army. On the first day he took office, all the senior officers in the division were either dead or disabled. Three brigades were beaten down to the remaining soldiers, but the order from the military headquarters was-continue to serve as cannon fodder. "Even if the entire 7th Division is killed, we must hold our position." Chief of Staff Sun Ying Shao Leng said. However, a system prompt sounded in Chen Rong's mind. Kill Japanese soldiers to gain merit points, which can be used to summon an infantry squad full of German weapons, an MG34 machine gun team, an 80mm mortar team... When everyone thought that the 7th Division was certain to die, strange faces who were well-trained and well-equipped suddenly appeared on Chen Rong's position. They speak standard Daxia dialect, but have tactical literacy far beyond this era. Zhao Haizhu, acting commander of the 1st Brigade, stared wide-eyed: "Master, where did these soldiers... Come from?" Chen Rong's face was expressionless: "Don't ask questions that you shouldn't ask. Hold the position for me and kill more Japanese people." The more you kill, the more you summon. From infantry squad to infantry battalion, from mountain artillery to tanks, from defeated soldiers to tiger and wolf divisions. In this life, he will forge an iron army with his own hands in blood and fire.