August 24 marked the 25th anniversary of the establishment of diplomatic ties between China and South Korea. Since the establishment of formal diplomatic relations in 1992, both countries have been jointly celebrating the anniversary every five years. This year, China sent its science and technology minister to a South Korean embassy event in Beijing. 

Speaking during his formal oath-taking ceremony on Wednesday, Moon pledged to work for peace on the Korean Peninsula amid growing worry over the North's expanding nuclear weapons and missiles programme. "I am willing to go anywhere for the peace of the Korean Peninsula," Moon said. "If needed, I will fly immediately to Washington. I will go to Beijing and I will go to Tokyo. If the conditions shape up, I will go to Pyongyang."

A senior South Korean diplomat voiced concerns on Monday over Beijing's restrictions on Korean entertainers' performances in China, the foreign ministry here said as the countries remain at odds over Seoul's plans to deploy an advanced U.S. missile defense system.

Korea and China celebrate the 24th anniversary of diplomatic relations on Aug. 24, but bilateral ties have suffered considerably in recent months due to Seoul's decision to deploy an advanced U.S. missile defense system here. Amid rising tensions between the two countries, President Park Geun-hye will visit China to attend the 11th G20 summit in Hangzhou on Sept. 4 to 5.

South Korean media are already abuzz with "imminent" Chinese retaliation to the Park Geun-hye government's announcement to host the Terminal High Altitude Area Defense (THAAD) anti-missile system. Has China suddenly become a vengeful hegemon? Even until January this year, Foreign Minister Yun Byung-se characterized Seoul-Beijing ties as the "best ever."