A woman with her child walks in the harbor of Mariupol, in the Sea of Azov, eastern Ukraine, Monday, Dece,ber 3, 2018. The Ukrainian military has been on increased readiness as part of martial law introduced in the country in the wake of the Nov. 25, 2018 incident in the Sea of Azov, in which the Russian coast guard fired upon and seized three Ukrainian navy vessels along with their crews. (Photo by Evgeniy Maloletka/AP Photo)
