airsuperiority
Captain
Also very nice of South Korea to offer to return them. I think it shows that sino-SK relations are at their best since both nations were established.
Agreed. Sino-Korean relationship technically have nothing they are competing against each other for. I doubt Seoul feels threatened at all by China's growing military strengths, nor do Beijing really care that SK has the best F-15 variants out there. I think it's sooner or later that Beijing-Seoul's relationship will mature to a very very good condition.