As Beijing celebrated the 100th anniversary of the Chinese Communist Party on Thursday, President Xi Jinping warned foreign forces not to 'bully' his country.
In an hourlong address from Tiananmen Square, Xi pledged to bolster China's military, complete "reunification" with Taiwan, and ensure social stability in Hong Kong.
He also vowed to protect and defend Chinese sovereignty from foreign forces.
"The Chinese people will never allow any foreign forces to bully, oppress, or enslave us. Anyone who dares try to do that will have their heads bashed bloody against the Great Wall of steel forged by over 1.4 billion Chinese people."
Xi's comments were met with fervent applause from the 70,000-member audience and later became the top trending topic on Chinese social media.
Under Xi, China has taken a more assertive stance on the global stage.
The country has drawn international criticism for its treatment of Uyghur Muslims in Xinjiang and crackdown on Hong Kong under a sweeping national security law implemented last year.
It's also sent fighter jets and bombers to assert its sovereignty claims over democratically-ruled Taiwan, whose president, Tsai Ing-wen, has repeatedly called Taiwan an independent country.
While Beijing has never renounced the use of force to bring Taiwan under its control, Xi called for "peaceful reunification" on Thursday.
"All sons and daughters of China, including compatriots from both sides of the Taiwan Strait, must work together and move forward in solidarity, resolutely destroying any 'Taiwan independence' plots."
The Chinese Communist Party now boasts over 95 million members, according to data released on Wednesday.