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North Korea's secret tunnels to infiltrate Seoul 'more powerful than 10 atomic bombs' | World | News | Express.co.uk
![Tunnel discovery at the DMZ, a monumental achievement by the Far East District | Article | The United States Army Tunnel discovery at the DMZ, a monumental achievement by the Far East District | Article | The United States Army](https://api.army.mil/e2/c/images/2021/07/15/966e850d/original.jpg)
Tunnel discovery at the DMZ, a monumental achievement by the Far East District | Article | The United States Army
![Inside the North Korean war tunnels Kim Jong-un could use to shift 30,000 troops an hour to the South in a stealth attack | The Sun Inside the North Korean war tunnels Kim Jong-un could use to shift 30,000 troops an hour to the South in a stealth attack | The Sun](https://www.thesun.co.uk/wp-content/uploads/2016/12/nintchdbpict000113892060.jpg)
Inside the North Korean war tunnels Kim Jong-un could use to shift 30,000 troops an hour to the South in a stealth attack | The Sun
![Inside the North Korean war tunnels Kim Jong-un could use to shift 30,000 troops an hour to the South in a stealth attack | The Sun Inside the North Korean war tunnels Kim Jong-un could use to shift 30,000 troops an hour to the South in a stealth attack | The Sun](https://www.thesun.co.uk/wp-content/uploads/2016/12/nintchdbpict000286893533.jpg)
Inside the North Korean war tunnels Kim Jong-un could use to shift 30,000 troops an hour to the South in a stealth attack | The Sun
![While the North Korean Nuclear Button Cools, the Threat of the Underground Lingers - Modern War Institute While the North Korean Nuclear Button Cools, the Threat of the Underground Lingers - Modern War Institute](https://mwi.usma.edu/wp-content/uploads/2018/08/NorthKoreaTunnel-1200x640.jpg)
While the North Korean Nuclear Button Cools, the Threat of the Underground Lingers - Modern War Institute
![Kim Jong-un is preparing for invasion of South Korea through network of SECRET TUNNELS | Daily Mail Online Kim Jong-un is preparing for invasion of South Korea through network of SECRET TUNNELS | Daily Mail Online](https://i.dailymail.co.uk/i/pix/2016/12/05/12/3B0E884100000578-0-image-a-2_1480940389949.jpg)
Kim Jong-un is preparing for invasion of South Korea through network of SECRET TUNNELS | Daily Mail Online
![Destinations by Region : VisitKorea Destinations by Region The 3rd Tunnel (Dorasan Observatory) (제3땅굴) | Official Korea Tourism Organization Destinations by Region : VisitKorea Destinations by Region The 3rd Tunnel (Dorasan Observatory) (제3땅굴) | Official Korea Tourism Organization](https://tongglobalcdn.visitkorea.or.kr/cms/resource/22/2617822_image2_1.jpg)
Destinations by Region : VisitKorea Destinations by Region The 3rd Tunnel (Dorasan Observatory) (제3땅굴) | Official Korea Tourism Organization
![Destinations by Region : VisitKorea Destinations by Region The 3rd Tunnel (Dorasan Observatory) (제3땅굴) | Official Korea Tourism Organization Destinations by Region : VisitKorea Destinations by Region The 3rd Tunnel (Dorasan Observatory) (제3땅굴) | Official Korea Tourism Organization](https://tongglobalcdn.visitkorea.or.kr/cms/resource/24/2617824_image2_1.jpg)
Destinations by Region : VisitKorea Destinations by Region The 3rd Tunnel (Dorasan Observatory) (제3땅굴) | Official Korea Tourism Organization
![File:A South Korean investigation team member explores North Korean tunnel No. 4 near Kach'il-Bong Peak. South Korean counter-tunnels are being constructed to eliminate the value of Nort - DPLA - 3c9bed5f34b5f3c6393c44fc8ee07f46.jpeg - File:A South Korean investigation team member explores North Korean tunnel No. 4 near Kach'il-Bong Peak. South Korean counter-tunnels are being constructed to eliminate the value of Nort - DPLA - 3c9bed5f34b5f3c6393c44fc8ee07f46.jpeg -](https://upload.wikimedia.org/wikipedia/commons/1/16/A_South_Korean_investigation_team_member_explores_North_Korean_tunnel_No._4_near_Kach%27il-Bong_Peak._South_Korean_counter-tunnels_are_being_constructed_to_eliminate_the_value_of_Nort_-_DPLA_-_3c9bed5f34b5f3c6393c44fc8ee07f46.jpeg)