In fact, the reaction speed of the military of Zheng Country was much faster than the Great Tang Group had calculated. Because... they had telegraph machines!
Yes, that's right! Zheng Country actually had telegraph machines!
As for why they had telegraph machines, it was quite a dramatic story.
Zheng Country was a nation established on the power of the sea, resembling the Taren Kingdom in this regard; both placed great emphasis on the development of their navies.
Previously, Shireck had gone astray with the quixotic design of the Ming Wheel Ship—a type of warship meant to be marketed to recover the initial investment costs for its development.
The buyer they found for the Ming Wheel Ship was none other than Zheng Country!