During a speech at navy base in Southern China this week, China's President Xi Jinping called for military to show preparedness and strengthen trainings.
Thirteen Chinese military warplanes, including a sortie of two H-6 bombers and a Y-8, entered the Taiwan Air Defence Identification Zone (ADIZ) on Friday.
Beijing claims full sovereignty over Taiwan, a democracy of almost 24 million people located off the southeastern coast of mainland China, despite the fact that the two sides have been governed separately for more than seven decades.