North Korea says it tested a cruise missile system, its third known weapons display this year, and vowed “the toughest” response to what it called the escalation of U.S.

North Korea conducted a strategic cruise missile test on Saturday, state media KCNA reported on Sunday. The country's leader Kim Jong Un oversaw the test, according to the report, which described it as a test-fire of an "important weapon system.

Hyunseung Lee, a former soldier who fled North Korea, told BI that those sent to fight against Ukraine have "zero relationship with modern warfare."

North Korea has test-fired sea-to-surface strategic guided cruise missiles, state news agency KCNA reported Sunday, adding that the weapons precisely hit their targets.The war deterrence means