Putin says Russia and North Korea have vowed to aid each other if attacked in new partnership deal  9NewsPutin says Russia and North Korea will help each other if attacked, taking ties to a ‘new level’  CNNPutin, Kim’s ‘ominous’ new military move  news.com.auRussia and North Korea sign mutual defence pact  The GuardianPutin-Kim summit has roots in an alliance of 'isolated' nations built over decades  The Conversation