Western hysteria over North Korea-Russia cooperation proves success -- Foreign Ministry - Friends with (strategic) benefits. Troops and missiles for oil and bears: What Russia gets from North Korea, and what Pyongyang receives in return - FACTBOX: Release of new Russia-North Korea treaty - North Korean leader vows 'invariable support' for Russia in war against Ukraine - North Korea's Kim, Russian minister agree to boost military ties - Defense Minister notes active expansion of Russia-North Korea military cooperation - China unnerved by Russia's growing ties with North Korea, claims US official - US expects Russia-North Korea cooperation to be formidable challenge in coming years - North Korea's aid to Russia raises difficult questions in China - Russia-North Korea pact is striking in its strategic ambiguity