U.S. Secretary of State Mike Pompeo has held talks with Australian Foreign Minister Marise Payne in Sydney. The defense ministers of both countries also joined the meeting. It's part of annual consultations between top Australian and American officials. U.S. defense Secretary Mark Esper has said he's in favor of deploying ground-based missiles to Asia. So how many U.S. military bases have been set up in the Asia-Pacific region? Let's find out with Rong Ying, vice president of the China Institute of International Studies.