FILE - Volunteers of the Azov Civil Corps pass by a tank in a WWII memorial at a rally marking Fatherland Defender Day in Kyiv, Ukraine, on Oct. 14, 2016. The Ukrainian forces who made a determined last stand in a Mariupol steel mill against Russian troops were a mixture of seasoned soldiers, border guards, a controversial national guard regiment and volunteers who took up arms in the weeks before Russia's invasion. (AP Photo/Efrem Lukatsky, File)
