Sim felt he was a genius.
Based on some data on paper, he can judge his neighbor's next move.
After discovering the situation, he immediately arranged his salesmen to go to nearby mines to purchase the stocks of war materials such as copper and sulfur.
At present, there are 1200 tons of copper in the warehouse of the horseshoe firm. According to his calculation, the full power bombs produced by the new alliance need about 16 to 17 tons of copper per million rounds.
If we fight a local battle, we will have to send 12 million rounds of ammunition. If we want to knock down the whole city of Xizhou, it will cost at least 10 million or 20 million