![Jeon Heon-Kyun Cho Chang-rae, South Korea's deputy defense minister for policy, and Vipin Narang, unseen, principal U.S. deputy assistant secretary of defense for space policy, attend a press conference after the third meeting of the Nuclear Consultative Group (NCG) at ministry of national defense in Seoul Monday, June 10, 2024. (Jeon Heon-Kyun/Pool Photo via AP)](https://mapi.associatedpress.com/v2/items/f062aa92e52b40f8bf1c4dc75d1770e1/preview/preview.jpg?s=680x)
Cho Chang-rae, South Korea's deputy defense minister for policy, and Vipin Narang, unseen, principal U.S. deputy assistant secretary of defense for space policy, attend a press conference after the third meeting of the Nuclear Consultative Group (NCG) at ministry of national defense in Seoul Monday, June 10, 2024. (Jeon Heon-Kyun/Pool Photo via AP)
![Jorge Silva FILE - Kim Yo Jong, sister of North Korea's leader Kim Jong Un, attends a wreath-laying ceremony at Ho Chi Minh Mausoleum in Hanoi, Vietnam, March 2, 2019. South Korea resumed broadcasting anti-North Korean propaganda through loudspeakers in border areas Sunday, June 9, 2024, in retaliation for the more than 1,000 trash- and manure-filled balloons the North had sent over the last couple of weeks. Hours later, Kim Yo Jong, the powerful sister of North Korean leader Kim Jong Un, warned that the South created a “prelude to a very dangerous situation.” (Jorge Silva/Pool Photo via AP, File)](https://mapi.associatedpress.com/v2/items/c8e5126083cf48db8e4d9c5eebf05324/preview/preview.jpg?s=680x)
FILE - Kim Yo Jong, sister of North Korea's leader Kim Jong Un, attends a wreath-laying ceremony at Ho Chi Minh Mausoleum in Hanoi, Vietnam, March 2, 2019. South Korea resumed broadcasting anti-North Korean propaganda through loudspeakers in border areas Sunday, June 9, 2024, in retaliation for the more than 1,000 trash- and manure-filled balloons the North had sent over the last couple of weeks. Hours later, Kim Yo Jong, the powerful sister of North Korean leader Kim Jong Un, warned that the South created a “prelude to a very dangerous situation.” (Jorge Silva/Pool Photo via AP, File)
![Uncredited Lee Sung Joon, spokesperson of South Korea's Joint Chiefs of Staff, speaks during the briefing in Seoul, South Korea, Monday, June 10, 2024. South Korea resumed broadcasting anti-North Korean propaganda through loudspeakers in border areas Sunday in retaliation for the more than 1,000 trash- and manure-filled balloons the North had sent over the last couple of weeks. Hours later, the powerful sister of North Korean leader Kim Jong Un warned that the South created a “prelude to a very dangerous situation.” Lee said Monday Kim Yo Jong’s comments represented a heightened verbal threat from North Korea but he did not provide a specific assessment on the actions the North might take. (Yun Dong-jin/Yonhap via AP)](https://mapi.associatedpress.com/v2/items/e229677e0f8446d09b03343933009079/preview/preview.jpg?s=680x)
Lee Sung Joon, spokesperson of South Korea's Joint Chiefs of Staff, speaks during the briefing in Seoul, South Korea, Monday, June 10, 2024. South Korea resumed broadcasting anti-North Korean propaganda through loudspeakers in border areas Sunday in retaliation for the more than 1,000 trash- and manure-filled balloons the North had sent over the last couple of weeks. Hours later, the powerful sister of North Korean leader Kim Jong Un warned that the South created a “prelude to a very dangerous situation.” Lee said Monday Kim Yo Jong’s comments represented a heightened verbal threat from North Korea but he did not provide a specific assessment on the actions the North might take. (Yun Dong-jin/Yonhap via AP)
![Jeon Heon-Kyun Vipin Narang, left, principal U.S. deputy assistant secretary of defense for space policy and Cho Chang-rae, South Korea's deputy defense minister for policy, attend a press conference after the third meeting of the Nuclear Consultative Group (NCG) at ministry of national defense in Seoul Monday, June 10, 2024. (Jeon Heon-Kyun/Pool Photo via AP)](https://mapi.associatedpress.com/v2/items/f0760997fbc6466fb770cdd513391a80/preview/preview.jpg?s=680x)
Vipin Narang, left, principal U.S. deputy assistant secretary of defense for space policy and Cho Chang-rae, South Korea's deputy defense minister for policy, attend a press conference after the third meeting of the Nuclear Consultative Group (NCG) at ministry of national defense in Seoul Monday, June 10, 2024. (Jeon Heon-Kyun/Pool Photo via AP)
![Jeon Heon-Kyun Vipin Narang, principal U.S. deputy assistant secretary of defense for space policy and Cho Chang-rae, unseen, South Korea's deputy defense minister for policy, attend a press conference after the third meeting of the Nuclear Consultative Group (NCG) at ministry of national defense in Seoul Monday, June 10, 2024. (Jeon Heon-Kyun/Pool Photo via AP)](https://mapi.associatedpress.com/v2/items/edeb4b447fb640019fe780666922b0db/preview/preview.jpg?s=680x)
Vipin Narang, principal U.S. deputy assistant secretary of defense for space policy and Cho Chang-rae, unseen, South Korea's deputy defense minister for policy, attend a press conference after the third meeting of the Nuclear Consultative Group (NCG) at ministry of national defense in Seoul Monday, June 10, 2024. (Jeon Heon-Kyun/Pool Photo via AP)
![Ahn Young-Joon FILE - A South Korean military vehicle with loudspeakers is seen in front of the barbed-wire fence in Paju, near the border with North Korea, on Feb. 15, 2018. South Korea announced Sunday, June 9, 2024 it would resume anti-North Korean propaganda loudspeaker broadcasts in border areas in retaliation to the North sending over 1,000 balloons filled with trash and manure over the last couple of weeks. (AP Photo/Ahn Young-joon, File)](https://mapi.associatedpress.com/v2/items/7f039cd84e3347289f9f3e7c55c9b6bb/preview/preview.jpg?s=680x)
FILE - A South Korean military vehicle with loudspeakers is seen in front of the barbed-wire fence in Paju, near the border with North Korea, on Feb. 15, 2018. South Korea announced Sunday, June 9, 2024 it would resume anti-North Korean propaganda loudspeaker broadcasts in border areas in retaliation to the North sending over 1,000 balloons filled with trash and manure over the last couple of weeks. (AP Photo/Ahn Young-joon, File)
![Uncredited Lee Sung Joon, spokesperson of South Korea's Joint Chiefs of Staff, speaks during the briefing in Seoul, South Korea, Monday, June 10, 2024. South Korea resumed broadcasting anti-North Korean propaganda through loudspeakers in border areas Sunday in retaliation for the more than 1,000 trash- and manure-filled balloons the North had sent over the last couple of weeks. Hours later, Kim Yo Jong, the powerful sister of North Korean leader Kim Jong Un, warned that the South created a “prelude to a very dangerous situation.” Lee said Monday Kim’s comments represented a heightened verbal threat from North Korea but he did not provide a specific assessment on the actions the North might take. (Yun Dong-jin/Yonhap via AP)](https://mapi.associatedpress.com/v2/items/da69acb9d2ca44e69a217261cef7b2f5/preview/preview.jpg?s=680x)
Lee Sung Joon, spokesperson of South Korea's Joint Chiefs of Staff, speaks during the briefing in Seoul, South Korea, Monday, June 10, 2024. South Korea resumed broadcasting anti-North Korean propaganda through loudspeakers in border areas Sunday in retaliation for the more than 1,000 trash- and manure-filled balloons the North had sent over the last couple of weeks. Hours later, Kim Yo Jong, the powerful sister of North Korean leader Kim Jong Un, warned that the South created a “prelude to a very dangerous situation.” Lee said Monday Kim’s comments represented a heightened verbal threat from North Korea but he did not provide a specific assessment on the actions the North might take. (Yun Dong-jin/Yonhap via AP)
![Kim Hong-Ji FILE - A worker dismantles loudspeakers that set up for propaganda broadcasts near the demilitarized zone separating the two Koreas in Paju, South Korea, on May 1, 2018. South Korea announced Sunday, June 9, 2024 it would resume anti-North Korean propaganda loudspeaker broadcasts in border areas in retaliation to the North sending over 1,000 balloons filled with trash and manure over the last couple of weeks. (Kim Hong-Ji/Pool Photo via AP, File)](https://mapi.associatedpress.com/v2/items/b3dcaffbaba94e6b9211fbd74e19c387/preview/preview.jpg?s=680x)
FILE - A worker dismantles loudspeakers that set up for propaganda broadcasts near the demilitarized zone separating the two Koreas in Paju, South Korea, on May 1, 2018. South Korea announced Sunday, June 9, 2024 it would resume anti-North Korean propaganda loudspeaker broadcasts in border areas in retaliation to the North sending over 1,000 balloons filled with trash and manure over the last couple of weeks. (Kim Hong-Ji/Pool Photo via AP, File)
![Kim Hong-Ji FILE - South Korean soldiers dismantle loudspeakers that set up for propaganda broadcasts near the demilitarized zone separating the two Koreas in Paju, South Korea, on May 1, 2018. South Korea announced Sunday, June 9, 2024 it would resume anti-North Korean propaganda loudspeaker broadcasts in border areas in retaliation to the North sending over 1,000 balloons filled with trash and manure over the last couple of weeks. (Kim Hong-Ji/Pool Photo via AP, File)](https://mapi.associatedpress.com/v2/items/984c2d3ae2714c2db77840e9d7a03034/preview/preview.jpg?s=680x)
FILE - South Korean soldiers dismantle loudspeakers that set up for propaganda broadcasts near the demilitarized zone separating the two Koreas in Paju, South Korea, on May 1, 2018. South Korea announced Sunday, June 9, 2024 it would resume anti-North Korean propaganda loudspeaker broadcasts in border areas in retaliation to the North sending over 1,000 balloons filled with trash and manure over the last couple of weeks. (Kim Hong-Ji/Pool Photo via AP, File)
![Lee Jin-Man A visitor looks at the North Korean side from the unification observatory in Paju, South Korea, Sunday, June 9, 2024. South Korea announced Sunday it would resume anti-North Korean propaganda loudspeaker broadcasts in border areas in retaliation to the North sending over 1000 balloons filled with trash and manure over the last couple of weeks. (AP Photo/Lee Jin-man)](https://mapi.associatedpress.com/v2/items/ae15443d565e45998d429b09fc4fc8b7/preview/preview.jpg?s=680x)
A visitor looks at the North Korean side from the unification observatory in Paju, South Korea, Sunday, June 9, 2024. South Korea announced Sunday it would resume anti-North Korean propaganda loudspeaker broadcasts in border areas in retaliation to the North sending over 1000 balloons filled with trash and manure over the last couple of weeks. (AP Photo/Lee Jin-man)
![Lee Jin-Man Visitors use binoculars to see the North Korean side from the unification observatory in Paju, South Korea, Sunday, June 9, 2024. South Korea announced Sunday it would resume anti-North Korean propaganda loudspeaker broadcasts in border areas in retaliation to the North sending over 1000 balloons filled with trash and manure over the last couple of weeks. (AP Photo/Lee Jin-man)](https://mapi.associatedpress.com/v2/items/115274a7e5b34ea5b6bbdb2584e5b572/preview/preview.jpg?s=680x)
Visitors use binoculars to see the North Korean side from the unification observatory in Paju, South Korea, Sunday, June 9, 2024. South Korea announced Sunday it would resume anti-North Korean propaganda loudspeaker broadcasts in border areas in retaliation to the North sending over 1000 balloons filled with trash and manure over the last couple of weeks. (AP Photo/Lee Jin-man)