U.S. Defense Secretary Jim Mattis said Saturday that one country alone should not rule the Indo-Pacific region in an apparent warning to China, criticizing Beijing's military buildup in the South China Sea.In a speech at the Asia Security Summit in Singapore, known as the Shangri-La Dialogue, the U.S. defense chief expressed readiness to promote the "Free and Open Indo-Pacific Strategy," which is upheld by President Donald Trump's administration.The concept is aimed at ensuring stability from East Asia to Africa through cooperation with countries that share values such as freedom of navigat…READ FULL ARTICLE