China's maritime claims in the Asia-Pacific region, particularly in the South China Sea, have been a source of ongoing tension with neighboring countries. Beijing's expansive territorial assertions, as evidenced by the 10-dash-line on official maps, have led to disputes with nations like the Philippines, Vietnam, Taiwan, Malaysia, and Brunei.
The 2016 United Nations tribunal ruling invalidated China's claims in the South China Sea, a region rich in resources like oil reserves and fishing grounds. Despite the ruling, China rejected it and continued to assert its dominance, even leading to direct confrontations with other countries.