South Korea's president in Ukraine to see Zelenskyybr br South Korean President Yoon Suk Yeol made a surprise visit to Ukraine on Saturday, offering support for the invaded country in its war with Russia while demonstrating his own nation’s cooperation with NATO.br br Yoon’s office said he traveled to Ukraine with his wife, Kim Keon Hee, following trips to Lithuania for a NATO summit and to Poland. It’s his first visit since Russia invaded Ukraine in February 2022.