American and South Korean officials said that there’s evidence North Korea has dispatched troops to Russia in a potential escalation of the nearly 3-year-old war with Ukraine.

North Korea sending troops to Russia and Ukraine risks escalating that conflict, and underscores growing collaboration among antidemocratic nations.

Signs are mounting that North Korean soldiers are fighting on Russia's side in Ukraine. Kyiv is already talking about a new war party. In what ways could heightened North Korean-Russian ties affect the war?