```
Wang Zhong looked at his watch and sighed to Su Fang, "So, I can start the artillery preparation two hours ahead of schedule, right?"
Su Fang nodded repeatedly.
Wang Zhong turned his head and shouted, "Vasily, call the artillery command post and tell them to start firing two hours earlier."
The artillery command post was also something Wang Zhong had learned from the Federation. The Federation had a method of simultaneous shell casting, where artillery units of different levels equipped with various types of cannons would coordinate their firing times differently, but the shells would land at the same time.
Because they landed simultaneously, the firepower density in that time period was several times more intense than that of normal firing.
During World War II on Earth, only the Americans were able to do this, and afterwards, other countries began to learn.
