(L-R) Norwegian Prime Minister Erna Solberg, Finnish President Sauli Niinisto, Russian President Vladimir Putin, Icelandic President Gudni Johannesson and Swedish Prime Minister Stefan Lofven attend the 5th International Arctic Forum in St. Petersburg, Russia, April 9, 2019. The 5th International Arctic Forum was held in St. Petersburg to discuss the socio-economic development of the Arctic territories. (Xinhua/Evgeny Sinitsyn)