title: Ukrainian-Russian Conflict and Its Implications for Northeast Asia
abstract: In 2014, the crisis over Ukraine became the most serious European crisis since the end of the Cold War. Russia’s intervention in Crimea and Donbas was open violation of security assurances given by great powers to denuclearized Ukraine. It undermined credibility of great powers and created dangerous precedents for South Korea, Japan, and other U.S. allies in Asia. It increased tension in East and South China Seas as well as in the Korean Peninsula, making Pyongyang rely more on nuclear weapons. 