President Xi Jinping warned on Friday, in a muscular speech to mark 70 years since Chinese troops entered the Korean War, that China was not afraid of war and would never allow its sovereignty, security, and development interests to be undermined. Al Jazeera reports that Xi did not directly refer to the US, whose ties with China have sunk to their lowest in decades amid escalating disputes with the administration of President Donald Trump, but said “Let the world know that ‘the people of China are now organised and are not to be trifled with’,” quoting Mao Zedong, the founding father of the People’s Republic of China. Xi also stressed the need for the modernisation of the country’s defence and armed forces to create a world-class military.