Yeseul Woo Hoell is a Ph.D. candidate in the department of war studies at King's College London. She is the Della Ratta Fellow at the Partnership for Global Security. Her research focuses on nuclear energy security, nonproliferation, and nuclear policy issues, especially in Northeast Asia. Previously, she was a developing scholar at the Hudson Institute, a resident Lloyd and Lilian Vasey fellow at the Pacific Forum, and an Asia-Pacific leadership fellow at the East West Center. She further worked as a journalist for media outlets in the U.S. and South Korea. Yeseul is a Fellow of Salzburg Global Seminar.