In this photo provided by Fighters For A Free North Korea, North Korean defector Park Sang-hak, left, and a member of Fighters For A Free North Korea hold balloons bearing anti-North Korean propaganda leaflets in Paju, near the border with North Korea, South Korea, Thursday, June 20, 2024. A South Korea activists' group said Friday it again flew large balloons carrying anti-North Korean propaganda leaflets toward North Korea, adding to a campaign that aggravated animosities between the rivals and prompted a resumption of Cold War-style psychological warfare along their border. (Fighters For A Free North Korea via AP)
FILE - Russian President Vladimir Putin, right, and North Korea's leader Kim Jong Un smile during their meeting at the Pyongyang Sunan International Airport outside Pyongyang, North Korea, on June 19, 2024. Kim and Putin signed a major defense deal that observers worry could embolden Kim to direct more provocations at South Korea. (Gavriil Grigorov, Sputnik, Kremlin Pool Photo via AP, File)
FILE - The Theodore Roosevelt (CVN 71), a nuclear-powered aircraft carrier is anchored in Busan, South Korea, on June 22, 2024. (Song Kyung-Seok/Pool Photo via AP)
FILE - A balloon presumably sent by North Korea, is seen in a paddy field in Incheon, South Korea, on June 10, 2024. South Korea is monitoring an expected change in the wind direction on Monday, June 24 that could allow North Korea to send more trash-carrying balloons across their heavily armed border, in their latest bout of tit-for-tat psychological warfare. (Im Sun-suk/Yonhap via AP, File)
FILE - Russian President Vladimir Putin, left, and North Korea's leader Kim Jong Un exchange documents during a signing ceremony of the new partnership in Pyongyang, North Korea, on June 19, 2024. Kim and Putin signed a major defense deal that observers worry could embolden Kim to direct more provocations at South Korea. (Kristina Kormilitsyna, Sputnik, Kremlin Pool Photo via AP, File)