The Moon administration is already trying to backtrack on the Joint statement made by President Moon and President Biden during last week’s summit:

The government has stepped up efforts to prevent any fallout from President Moon Jae-in’s summit with U.S. President Joe Biden adversely affecting South Korea’s ties with China, with the foreign minister saying their post-summit statement touching on Taiwan was “theoretical and principled.”
Korea Times
President Moon and his U.S. counterpart held their first in-person meeting at the White House last week and their joint statement referred to the importance of preserving peace and stability in the Taiwan Strait. It also referred to freedom of navigation and overflights in the South China Sea and beyond.
Despite not directly mentioning China, it was seen as a sign that South Korea agreed with the U.S.’s anti-China campaign, and this drew a strong response from Beijing.
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