Military officials estimate North Korea has a network of thousands of tunnels beneath Pyongyang and key strategic locations.

Russia supports the North Korean nuclear program, and Kim Jong-un supplies weapons and troops to the Kremlin for its war in ...

U.S. and South Korean troops honed their underground combat skills using drones and breaching tools as part of a recent large ...

North Korea says it has test-launched new anti-aircraft missiles, as its military threatens unspecified grave steps against the U.S. and South Korea over their military drills ...

They were practising a war scenario with North Korea, which is believed to have a vast network of fortified tunnels stretching from key command centres to the border with the South. The two armies ...

Drones and quadrupedal robots could be used in the operation.

North Korea’s Defense Ministry alleged Friday the recent U.S.-South Korean drills involved simulations to destroy underground tunnels in the North to remove its nuclear weapons. An unidentified ...

South Korean and American troops practised storming North Korea’s network of strategic and fortified underground tunnels with four-legged robot dogs and drones during military drills to train for ...