The United Nations Secretary General Antonio Guterres said the idea of a nuclear conflict was “simply inconceivable” during his remarks on February 28, 2022, at a General Assembly emergency session on Russia’s invasion of Ukraine. The previous day, Russian President Vladimir Putin put Russia's nuclear deterrent forces on high alert. Putin said his move was in response to what he called aggressive statements by Nato leaders and Western economic sanctions against Moscow. Russia has the world’s…