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At the opening ceremony of the exhibition Tuesday morning, Liu Yunshan said the exhibition showcased brave resistance in the face of invasion and the CPC's role as a corner stone in that endeavor.

Vucic said he looks forward to attending the meeting in China later this year. He said Serbia is ready to take an active part in the construction of the "Belt and Road". He welcomes Chinese companies to invest and set up operations in Serbia, saying Serbia will continue to strengthen cooperation with China in the areas of railway, highway, power station, farm produce trade, energy and tourism.

He pointed out that Chinese laws prohibit cyber crimes of all forms and China has made great efforts to combat cyber attacks in accordance with Chinese laws and regulations.

However, the government should not loosen supervision while streamlining administration, they suggested.

Xi urged more combat training to hone the troops' abilities to fulfil tasks and maintain readiness to fight.