One of the biggest business war cases in history is the "Hundred Years of Truth War" between Coca-Cola and Pepsi. In the 1980s, Pepsi quickly surpassed Coca-Cola to become the world's largest carbonated beverage brand.

In 1993, Coca-Cola launched a new flavor "New Coke", but it was boycotted by consumers and opposed by employees. After weeks of protests and boycotts, Coca-Cola finally had to withdraw "New Coke" and restore the original flavor. This storm caused Coca-Cola to suffer a big loss, while Pepsi took the opportunity to expand its market share.

The case of Amazon against Wall Street is a good business war case. In the 1990s, Wall Street investors believed that books were the only tool to make money in the future, so they invested a lot of money in bookstores. When Amazon launched an online bookstore, they decided to resist this emerging business model, believing that online bookstores could never replace physical bookstores. However, Amazon quickly attracted a large number of consumers by offering strategic advantages such as preferential prices, fast delivery, flawless operation, and high quality and low prices, making it one of the largest e-commerce companies in the world.