Chinese language President Xi Jinping advised troops to focus their "minds and power on getting ready for warfare" throughout a go to to a army base, in line with a report on Wednesday.
While checking the condition of the Chinese People's Liberation Army Marine Corps in Chaozhou City, Xi Jinping appealed to the military and urged them to maintain a state of high alert.
This is widely seen as the country is preparing for war.
The goal of his visit was to deliver a speech to commemorate the 40th anniversary of the Shenzhen Special Economic Zone, which was established in 1980 to attract foreign capital. It is noted that at the moment, relations between Beijing and Washington are at the height of tension due to the coronavirus pandemic and disputes over Taiwan.
According to CNN, the White House had earlier notified US Congress on Monday that it was planning to move ahead with the sale of three advanced weapon systems to Taiwan, including the advanced High Mobility Artillery Rocket System (HIMARS).
Meanwhile Foreign Ministry spokesperson, Zhao Lijian called on Washington to immediately cancel any arms sales plans to Taiwan.
Xi's call for combat readiness comes as political tensions have flared between China and Taiwan. He also said that all US-Taiwan military ties must be cut.
In August, when USA health chief Alex Azar visited Taiwan to offer US President Donald Trump's support, Chinese air force jets briefly crossed the mid-line of the Taiwan Strait and were tracked by Taiwanese missiles.
Last month, China released a propaganda video showing nuclear-capable bombers carrying out a simulated attack on what appears to be the US Andersen Air Force Base on the Pacific island of Guam.
The Communist government has ratcheted up pressure on the democratic island since the 2016 election of President Tsai Ing-wen, who rejects its view that Taiwan is part of "one China".