One by one, UN Security Council members called for a diplomatic solution to the crisis in Ukraine.Even Russia's deputy foreign minister said everything should be done to find a diplomatic solution. But he didn't respond to US Secretary of State Antony Blinken's appeal to state unequivocally that Russia will not invade Ukraine. So what Blinken called the most immediate threat to international peace and security in the world today remains, with all eyes still on Russia.The annual Security Council meeting was called by Russia to focus on implementation of the Minsk Agreements aimed at restoring peace to eastern Ukraine where Russian-backed separatist have been at war with government troops since Moscow's invasion of Crimea in 2014. The open session brought together all the key players who now confront broader security grievances from Moscow: It is demanding a NATO ban on Ukraine joining the alliance, which its members say is impossible.