Ahn Gyu-back

The provided news articles do not mention anyone named Ahn Gyu-back. Therefore, it is impossible to provide a summary about this person based on the given information. The articles focus on the relationship between South Korea, the United States, and China, specifically regarding military exercises and diplomatic tensions. They highlight South Korea's efforts to balance its security alliance with the US and its economic ties with China, as well as disagreements between South Korea and the US regarding the scale of joint military exercises like Freedom Shield. The articles suggest a desire from South Korea to de-escalate tensions and potentially open diplomatic channels with North Korea.