BEIJING -- President Xi Jinping said Tuesday that the Chinese People's Liberation Army (PLA) is moving rapidly toward "strong" informationized armed forces.

Xi said the PLA has transformed from a "millet plus rifles" single-service force to one that has fully-fledged services and has basically completed mechanization.

He said that the PLA must be bold in reform and adept in innovation while staying away from rigidity and stagnation at any time and under any circumstances.

Xi reaffirmed the Communist Party of China (CPC)'s absolute leadership over the PLA.

"To build a strong military, [we] must unswervingly adhere to the Party's absolute leadership over the armed forces, and make sure that the people's army always follow the Party," he said.

Xi called for a new generation of "capable, brave and virtuous" army "with souls" in order to build a strong military.

Calling political work the "lifeline" of the PLA, Xi said troops must have ironclad faith, beliefs, disciplines and responsibilities, and retain their nature and tenet as the people's army.

Xi has urged the country's armed forces to bear in mind the sacred duty of fighting for the people.

The PLA is deeply rooted in the people and the strength comes from the people, said Xi.

Xi called on the PLA to maintain its close relationship with the people and "go through thick and thin" with them.

The PLA should also actively contribute to the economic and social development in stationed areas to benefit the people with actions, said Xi.

Xi urged boosting integrated military and civilian development amid efforts to build a strong military.

China must build a national strategic system and capacity of military-civilian integration, he said.

The CPC has established its thoughts on building a strong military in a new phase, Xi said.

The Party has put forward a series of new ideas and requirements concerning national defense and military building in the past five years since the 18th CPC National Congress, which together constitute the CPC's thoughts on building a strong army in the new phase, Xi said.

The Party's military strengthening theories should be constantly enriched and developed to cope with new challenges and solve new problems under new circumstances, he said.

He stressed "coordinated, balanced and inclusive development" of economic and national defense construction.

China will never compromise on its sovereignty, security or development interests, Xi said.

"The Chinese people love peace. We will never seek aggression or expansion, but we have the confidence to defeat all invasions. We will never allow any people, organization or political party to split any part of Chinese territory out of the country at any time, in any form," Xi said.

"No one should expect us to swallow the bitter fruit that is harmful to our sovereignty, security or development interests," he said.

Xi, also general secretary of the Communist Party of China Central Committee and chairman of the Central Military Commission, made the remarks while addressing a grand gathering in celebration of the PLA's 90th founding anniversary.