"Father, the son is not boasting, if you use the new learning of the son to arm the Ming Dynasty, the range of the cannon can be as far as you want!"

After Zhang Yifan said this sentence confidently, seeing Zhu Yuanzhang's face a little surprised, he added: "The improvement of firearms will definitely always exist, and the gap with other countries will become bigger and bigger." There will come a time when a war will not be won or lost by a sea of people. Our Ming army does not need too many people, and it is well-used

"Early Ming Dynasty: Saved a Princess at the Beginning" 263 I'm old, I'm playing in my hand, please wait a moment,

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