In this Feb. 8, 2013, file photo, Russian President Vladimir Putin, right, and Kazakhstan’s President Nursultan Nazarbayev shake hands during their meeting in the Kremlin in Moscow. Nazarbayev, the only leader that independent Kazakhstan has ever known, abruptly announced his resignation Tuesday, March 19, 2019, after three decades in power. (Alexander Nemenov/Pool Photo via AP, File)