The Pentagon signalled on Monday that it was adding Alibaba, BYD, Baidu and dozens of other Chinese companies to its list of entities it says are linked to China’s military, widening a blacklist that increasingly targets sectors at the heart of US-China technological competition. In a Federal Register notice scheduled for publication on Wednesday, the US Department of Defence designated a broad range of Chinese firms as “Chinese military companies” under Section 1260H of the National Defence...

Taiwan has accused Beijing of escalating tensions after mainland Chinese coastguard and survey vessels carried out law-enforcement operations in waters off the island’s east coast. Over the weekend, mainland China’s transport ministry announced a “special maritime traffic law enforcement operation” and dispatched a flotilla of coastguard vessels into the waters east of Taiwan. That included the coastguard’s largest patrol vessel. Chinese state media said the operation was a “necessary action” to...