KYIV, Ukraine — Armed with machine guns, balaclava-clad Russian soldiers burst into 16-year-old Vladislav Rudenko’s home in the city of Kherson in southern Ukraine and gave him half an hour to gather some things.“I was home alone.

​KYIV, Ukraine — Armed with machine guns, balaclava-clad Russian soldiers burst into 16-year-old Vladislav Rudenko’s home in the city of Kherson in southern Ukraine and gave him half an hour to gather some things.“I was home alone.