The Pentagon added a slew of Chinese tech firms, including Alibaba, Baidu and BYD, to a list of entities it believes have aided China's military.

The newly updated index offers a glimpse into how Washington views the relationship between China's commercial sector and military development as geopolitical competition…

China is deeply unhappy with the United States placing several major Chinese firms on a Pentagon list. This move impacts top technology and solar companies. Beijing warns of firm…