Ukraine war briefing: Russia plans to send North Korean troops into battle as early as Sunday, Zelenskiyy says  The GuardianNorth Korea has joined Putin’s war effort. A timid West must respond  Sydney Morning HeraldAustin Confirms North Korea Has Sent Troops to Russia  Department of DefenseRussia-Ukraine war: List of key events, day 973  Al Jazeera EnglishUS confirms 3,000 North Korean troops have been deployed to eastern Russia  ABC News