What happens in Ukraine will not stay in Ukraine. That is the essence of an argument commonly made for why the U.S. must support Kyiv in resisting Russian aggression: A failure to stop Russia will give other powers the impression that they can pursue their interests with aggressive impunity. But is that really the case?
Since taking office last year, South Korean President Yoon Suk Yeol has worked to improve ties with both the U.S. and China, in part by trying to focus their energies on managing North Korea. But pressure is now mounting on Seoul to clarify where it stands in terms of its readiness to help defend Taiwan in the event of a Chinese attack.