Resistance: I Have A Summoning System

Han Ling accidentally traveled to another time and space in 1938 and activated the summoning System. All battles will be presented in the original time and space in the form of live broadcast. At the same time, anyone in the original time and space can be summoned to fight.
In the live broadcast room:
"Anchor, hurry up! Call me, I want to kill the Japanese."
"Anchor! My grandfather asked me to avenge my great-grandfather and kill the Japanese. If you don't summon me, I will be beaten to death by my grandfather!"
"Anchor, call me! Call me, I have changed all my property into supplies and sent them all to you. Please, I want to kill the Japanese."Japanese invaders:
"Why are none of Han Ling's soldiers afraid of death, and why do they hate us so much? Where did he get the arms? Where did he get the food and supplies to support such a large army?"
Friendly troops:
"Han Ling is generous! We have Han Ling's brave army in Xia, so why worry about the Japanese invaders not being destroyed!"
...
Han Ling: What, you want to surrender? Okay, firstly, no one who surrenders will be allowed to return to the country, secondly, we will establish a military base in your island country, and..., I haven’t thought about it yet, let’s continue fighting!
The introduction is weak. If you are interested, please move to the text.