South Korea has accepted a last-minute invitation from China to a conference on a new Silk Road, days after a new president took office on Seoul pledging to engage in discussions with Beijing to ease tension over a U.S. anti-missile system. Chinese President Xi Jinping extended the invitation to the Belt and Road conference in Beijing during a telephone call on Thursday with new South Korean President Moon Jae-in, Moon’s spokesman, Yoon Young-chan, told a briefing on Friday. Ties between South Korea and China, who are important trade partners, have been strained by Seoul’s decision to host a U.S. Terminal High Altitude Area Defense (THAAD) antimissile system in response to a growing missile threat from North Korea.