Russia's use of North Korean missiles in Ukraine will help the US figure out how effective they really are

• Russia fired North Korean missiles at Ukraine on December 30, January 2 and 4, per South Korea.
• Their use will help the US figure out how effective they are, military analysts said.
• Missile wreckage will reveal details that the West will use to improve its own weapons, they said.

Russia's use of North Korean missiles in Ukraine will help us figure out how effective they actually are on the battlefield, military analysts said.

South Korea's ambassador to the UN accused North Korea of using Ukraine as a "test site" for its nuclear-capable missiles on Wednesday.