North Korea's defence ministry denounced the United States' deployment of nuclear strategic assets in South Korea, state media KCNA reported on Tuesday, as Seoul was gearing up for a rare military parade marking Armed Forces Day.

South Korea has unveiled its most powerful ballistic missile targeting North Korea. It did so during an Armed Forces Day ceremony Tuesday as the president warned that North Korea's regime will collapse if it attempts to use nuclear weapons.

The North Korean regime must abandon the delusion that nuclear weapons will protect them,” its president said.

A politician breaks taboo and starts a conversation over whether North Korea and South Korea should give up on reunification.