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The United Nations says refugees are fleeing the Russian war in Ukraine by the millions.

EXODUS

Speaking from the Polish border with Ukraine, a UN representative said most of the refugees are women and children. The UN said it is the fastest exodus from a war-torn country Europe has seen since World War II.

An exodus is a situation in which many people escape from a hostile environment. An exodus also happens when a large group of people leaves a place at the same time after a gathering, such as a sports event.