China has been at odds with many other countries in the Asia-Pacific for years over its sweeping maritime claims, including almost all of the South China Sea, a strategic and resource-rich waterway around which Beijing has drawn a 10-dash-line on official maps to delineate what it says is its territory.
Beijing is in the midst of a massive military expansion and has become increasingly assertive in pursuing its claims, giving rise to more frequent direct confrontations, primarily with the Philippines...