Beijing: Chinese President Xi Jinping touted the fight against COVID-19 while calling for the acceleration of building a world class military as he opened the twice-a-decade Communist Party Congress by largely reiterating key policy priorities.

In a speech lasting less than two hours - far shorter than his nearly three-and-a-half-hour address at the last congress in 2017 -- Xi restated support for the private sector and allowing markets to play a key role, even as China fine-tunes a "socialist economic system" and promotes "common prosperity". The biggest applause came when he restated opposition to Taiwan independence.

Xi is widely expected to win a third leadership term at the conclusion of the week-long congress, cementing his place as the country's most powerful ruler since Mao Zedong. The gathering of roughly 2,300 delegates from around the country began in the vast Great Hall of the People on the west side of Tiananmen Square amid tight security and under blue skies after several smoggy days in the Chinese capital.

In recent days, Beijing has repeatedly emphasised its commitment to Xi's zero-COVID strategy, dashing hopes among countless Chinese citizens as well as investors that Beijing might begin exiting anytime soon a policy that has caused widespread frustration and economic damage.

Xi said little about COVID other than to reiterate the validity of a policy that has made China a global outlier as much of the world tries to coexist with the coronavirus. "We have adhered to the supremacy of the people and the supremacy of life, adhered to dynamic zero-COVID ... and achieved major positive results in the overall prevention and control of the epidemic, and economic and social development," Xi said.

On Taiwan, Xi said, "We have resolutely waged a major struggle against separatism and interference, demonstrating our strong determination and ability to safeguard state  

and territorial integrity and oppose Taiwan independence. "The delegates, wearing blue face masks, responded with loud and prolonged applause. China will accelerate the building of a world-class military and strengthen its ability to build a strategic deterrent capability, Xi said in a speech that mentioned "safety" or "security" 73 times.

He called for strengthening the ability to maintain national security, ensuring food and energy supplies, securing supply chains, improving the ability to deal with disasters and protecting personal information.

In his decade in power, Xi, 69 has set China on an increasingly authoritarian path that has prioritised security, state control of the economy in the name of "common prosperity", a more assertive diplomacy, a stronger military and intensifying pressure to seize democratically governed Taiwan. Analysts generally do not expect significant change in policy direction in a third Xi term.

"We must build a high-level socialist market economic system ... unswervingly consolidate and develop the public ownership system, unswervingly encourage and support the development of the private economy, give full play to the decisive role of the market in the allocation of resources, and give better play to the role of the government," he said.

Xi's power appears undiminished by the tumult of a year that has seen China's economy slow dramatically, dragged down by the COVID policy's frequent lockdowns, a crisis in the property sector and the impact of his 2021 crackdown on the once-freewheeling "platform economy", as well as global headwinds. China's relations with the West have deteriorated sharply, worsened by Xi's support of Russia's Vladimir Putin.

The son of a Communist Party revolutionary, Xi has reinvigorated a party that had grown deeply corrupt and increasingly irrelevant, expanding its presence across all

aspects of China, with Xi officially its "core". Xi did away with presidential term limits in 2018, clearing the way for him to break with the precedent of recent decades

and rule for a third five-year term, or longer."We have comprehensively strengthened the party's leadership ... and ensured that the party plays the role of leadership core

in overseeing the overall situation," he said. "Through continuous struggle, we have realised the thousand-year-old dream of a Chinese nation of moderate prosperity."

The congress is expected to reconfirm Xi as party general secretary, China's most powerful post, as well as chairman of the Central Military Commission. Xi's presidency is up for renewal in March at the annual session of China's parliament.

In the run-up to the congress, the Chinese capital stepped up security and COVID curbs, while steel mills in nearby Hebei province were instructed to cut back on operations to improve air quality, an industry source said. The day after the congress ends on Saturday, Xi is expected to introduce his new Politburo Standing Committee, a

seven-person leadership team. It will include the person who will replace Li Keqiang as premier when Li steps down from that post in March after serving the maximum two terms.