During his visit to Asia, U.S. Defense Secretary Jim Mattis said the U.S. is committed to “freedom of navigation” in the disputed waters in the South China Sea. But, he ruled out a military response. Mattis said to reporters in Tokyo, “At this time, we do not see any need for dramatic military moves at all.” Last December, China conducted takeoff and landing drills from its aircraft carrier Liaoning in the South China Sea, according to the state news agency Xinhua. The move followed a phone call between then President-elect Donald Trump and the president of Taiwan. China has long considered Taiwan as a province of China. During his confirmation hearing, Rex Tillerson, the new U.S. Secretary of State, called China’s island building an “illegal” activity. He said, “We’re going to have to send China a clear signal that, first, the island-building stops; and, second, your access to those islands also is not going to be allowed.” The comment drew sharp reaction from China. Lu Kang is a spokesman for China’s Foreign Ministry. In his daily briefing on Jan. 12, he said that China “has full right to conduct any kind of normal activities on its own territory within its sovereignty.” The Global Times is a state-run news organization. It published a strongly worded editorial saying, “Unless Washington plans to wage a large-scale war in the South China Sea, any other approaches to prevent Chinese access to the islands will be foolish.”