The world countries should unify to avoid the WWI tragic events to re-occur, Ukraine's President Volodymyr Zelensky said.
He declared this while delivering a speech regarding the International Day of the liberation of the Nazi concentration camps.
"Ukraine lost many people in Nazi camps during WWII. We remember all of them. In this difficult and concerning period, the Ukrainians and all civilized world should show specific unity to avoid large-scale war, and any possibility of such terrible things re-occur," Zelensky said.