North Korea's young leader Kim Jong-un "will get upset" by the U.S. decision to send another 800 troops and battle tanks to South Korea, a Chinese expert warned Thursday, amid deepening concerns over the stability of the Kim dynasty. The U.S. announced this week that it will start a nine-month deployment of the battalion of troops, 40 M1A2 battle tanks and some 40 Bradley fighting vehicles in South Korea from next month as the allies keep a close watch on North Korea following the recent execution of Kim's uncle. Last month's dramatic downfall of Jang Song-thaek raised concerns about the potential instability of Kim's two-year-old regime as the North unprecedentedly revealed that the uncle was executed for plotting a coup. It also stoked fears in South Korea that the North could carry out provocations to forge internal unity. Zhang Liangui, a professor of Koean studies at the Party School of the Central Committee of the Communist Party of China, told the state-run China Daily that the additional deployment of U.S. troops could increase tensions on the Korean Peninsula. North Korea "definitely will get upset by more U.S. troops being deployed to the peninsula, and the traditional U.S.-ROK (South Korea) joint military exercises in March will also challenge the patience of Kim Jong-un," Zhang told the newspaper. "Sending more troops to the region shows that the U.S. and ROK both take the current tensions on the Korean Peninsula seriously," Zhang said. Seoul's military officials said the new U.S. troops will be deployed in the northern part of Gyeonggi Province, just south of the heavily-fortified demilitarized zone separating the two Koreas. About 28,500 U.S. troops are stationed in South Korea, a legacy of the 1950-53 Korean War