WASHINGTON—President Joe Biden and Japanese Prime Minister Fumio Kishida on Friday used their first formal meeting to discuss concerns about the Chinese regime’s growing military aggression that’s spurring increasing disquiet in the Pacific. Kishida said that the two leaders spent a “significant amount” of their 80-minute call on issues surrounding China, including shared concerns about the Chinese communist regime’s increasing aggression toward Taiwan. The Chinese regime claims self-governing Taiwan as its own territory, despite the fact that Taiwan is a de facto independent country, with its own military, democratically-elected government, and constitution. In recent months, the Chinese Communist Party (CCP) has stepped up military exercises near Taiwan, frequently sending warplanes near the island’s airspace. Biden and Kishida also discussed the situations in Hong Kong and China’s Xinjiang province. Biden has repeatedly called out Beijing over its suppression of democracy activists in Hong Kong and forced labor practices targeting China’s Uyghur …