When Russian President Vladimir Putin visited North Korean leader Kim Jong-un this week, he signed onto a new partnership upgrading Moscow’s relationship with Pyongyang, and vowing mutual aid if either country is attacked. South Korea blasted the deal today, saying for the first time that it’s considering sending weapons to Ukraine. Jenny Town, the director of Stimson’s Korea Program and 38 North, talks with The World’s host Marco Werman about the implications of the new mutual defense pact.