Are we on verge of Nuclear War?

 More than ever, we are on edge of brinkmanship for  nuclear war to erupt.  Russia Ukraine war  with Putin posturing use of nuclear weapon.   China vs. US.   And many countries bristling with nuclear weapons:   US, China UK, France, Pakistan, India, North Korea

Humanity may have learned its lesson.  But megalomaniac like Putin, Xi  and NK despot can still put us in nuclear war.   

But I personally think that unless its Act of God, or natural catastrophe, humanity will march forward and avoid nuclear holocaust.   Nagasaki and Hiroshima are painful reminders.   

If ever there will be war, it will be mainly tribal wars.  Skirmishes with neighbors or tribes.