Steel Wing Iron Cavalry

No system, pure time travel, relying on intelligence and knowledge to control the situation, do not enter if you do not like it.
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The protagonist travels to the Republic of France and becomes a quasi-rich third generation in a family of agricultural tractors.

Unfortunately, it is near Paris. The Germans will soon come here, and to preserve the family, France must be saved.

Gallieni: "God, the enemy actually presented their flank to us!"

Xia Fei: "This can't be true, could it be a trap?"

Protagonist: "The food is ready, go ahead, do I need to feed it to your mouth?"

German Army: "Is this a tractor factory? What are these steel monsters that are impervious to knives and guns?"

After modification: Chapter 129 Grenade