FILE - A balloon presumably sent by North Korea, is seen in a paddy field in Incheon, South Korea, on June 10, 2024. Kim Yo Jong, the powerful sister of North Korean leader Kim Jong Un vowed Sunday, July 14, 2024, to respond to what she called a fresh South Korean civilian leafleting campaign, signaling North Korea would soon resume flying trash-carrying balloons across the border.(Im Sun-suk/Yonhap via AP, File)

FILE - Kim Yo Jong, the powerful sister of North Korean leader Kim Jong Un, attends a wreath-laying ceremony at Ho Chi Minh Mausoleum in Hanoi, Vietnam, March 2, 2019. Kim Yo Jong vowed Sunday, July 14, 2024, to respond to what she called a fresh South Korean civilian leafleting campaign, signaling North Korea would soon resume flying trash-carrying balloons across the border. (Jorge Silva/Pool Photo via AP, File)