Russian President Vladimir Putin attends the SCTO Summit in Astana

ASTANA, KAZAKHSTAN - NOVEMBER 8: (RUSSIA OUT) Russian President Vladimir Putin (2R), Kyrgyz President Sooronbay Jeenbekov (L), Kazakh President Nursultan Nazarbayev (2L) and Tajik President Emomali Rakhmon (R) pose for a photo during the Session of the Council on Collective Security of Security Collective Treaty Organisation (SCTO, or ODKB) on November 8, 2018 in Astana, Kazakhstan. Leaders of Russia, Kazakhstan, Armenia, Tajikistan and Kyrgystan have gathered in Astana for a one-day summit. (Photo by Mikhail Svetlov/Getty Images)