Published : Sept 15, 2021 – 18:43 Updated : Sept 15, 2021 – 18:43 | More article by this Writer President Moon Jae-in greets Chinese Foreign Minister Wang Yi at Cheong Wa Dae in Seoul on Wednesday. (Yonhap) North Korea could be trying to gain the upper hand in its relations with the US and China amid their intensifying rivalry, analysts say in reference to the ballistic missile tests that took place in the North on the same day that Chinese Foreign Minister Wang Yi met with South Korean leaders in Seoul.…