https://www.yahoo.com/news/us-military-watching-chinas-presence-110100878.html Although China's engagement with the region has focused on economic ties and it has not established a military presence there, US military commanders, national-security officials, and lawmakers believe Beijing's investments have implications for US security.
Given US influence in Japan, South Korea, Taiwan, and many other countries in China's neighborhood, US policymakers can only complain so much.
