WASHINGTON—U.S. President Joe Biden will hold an online meeting on Friday with the leaders of Japan, India, and Australia, the White House said on Tuesday, the first leader-level meeting of a four-country group that seeks to promote a rules-based international order in the Indo-Pacific region in response to increased military and economic aggression by China’s ruling communist party in the region. White House spokeswoman Jen Psaki said the meeting of the “Quad” countries showed the importance placed by Biden on U.S. allies and partners in the Indo-Pacific region. A range of issues facing the global community was expected to be discussed “from the threat of COVID, to economic cooperation and, of course, to the climate crisis,” she said. “This sends a very strong signal of common cause and purpose. And the goal here is basically to introduce the Quad as a new feature of regular diplomacy in the Indo-Pacific,” a …