International developments are such that the next 20 years of human history will be much more complicated than the previous period, Russian President Vladimir Putin said in his speech during the meeting of the "Valdai" club.
"If we look back and evaluate the realities and changes that took place 20 years ago, and then project those changes on the coming years, we can predict that the next twenty years will be no less complicated than the previous one, if not much more complicated," Putin said. .
