China’s purported fears about the introduction of defensive missiles into South Korea are likely insincere or misplaced, leaving concerns about the beneficial effects on U.S. alliances as the probable explanation for its opposition.
Watts, Robert C. IV
"“Rockets’ Red Glare”—Why Does China Oppose THAAD in South Korea, and What Does It Mean for U.S. Policy?,"
Naval War College Review: Vol. 71
, Article 7.
Available at: http://digital-commons.usnwc.edu/nwc-review/vol71/iss2/7