China and South Korea accuse each other of undermining key national principles

China and South Korea have formally protested each other's actions concerning sensitive national principles. South Korea lodged a serious objection after China welcomed moves toward the "peaceful coexistence of the two states of South and North Korea," which Seoul views as undermining Korean unity. Conversely, Beijing lodged serious representations with Seoul over an art event that included a "Taiwan pavilion." This art event led to mainland Chinese artists withdrawing in protest, which China interpreted as a challenge to its stance on Taiwan. These exchanges have occurred despite recent efforts by both nations to improve relations.