Eighteen months into the trade battle with President Donald Trump, China has come to terms that it’s fighting a forever war as conflicts have spread well beyond trade. China is preparing for a battle that could be as long as the U.S.-Japan trade war in the 1980s that lasted more than a decade, according to Yi Xiong, China economist at Deutsche Bank. “We think China is neither aiming to quickly reach a trade deal, nor trying to hit back at the U.S. as hard as it can,” Xiong said in a note Wednesday. “China’s current strategy likely has a long time horizon embedded in it. The time horizon may also go beyond the life cycle of the current U.S. administration.” While China will remain open to further negotiations, it’s less likely to make concessions given its effort to diversify its supply chain, the economist said. China is accelerating efforts in other countries to reduce its reliance on the U.S. The official newspaper of the Chinese Communist Party, the People’s Daily, on Sunday published several articles about China’s improving cooperation with other countries including Thailand, Japan, South Korea and Latin America. The coun...