I was a tycoon in World War I: Starting to save France

It's a pure time travel without a system, relying on IQ and knowledge to control the situation. Please don't enter if you don't like it.

The protagonist traveled to a farm tractor family in the French Republic and became a third-generation rich man.

The only drawback is that the Germans will soon reach Paris, and if the family is to be saved, France must be saved.

Gallieni: "My God, the enemy has sent their flank right in front of us!"

Xia Fei: "That won't happen, right? Is this a trap?"

Protagonist: "The food is ready, why don't you start eating it? Do you want me to send it to your mouth?"

……

Germans: "Is this a tractor factory? What the hell are these invulnerable steel monsters?"