In Russian Border City, Pro-Kremlin Ukrainians, Soldiers Regroup After Retreat From Ukraine

BELGOROD, Russia—When the Russians swept into the northeastern Ukraine area of Kharkiv in late February, Russian troops occupying the cities there promised locals they’d keep eternally.

Instead, Ukrainian forces drove Russian troops out of a lot of the area this month, retaking about 3,500 sq. miles of territory in a matter of days. The lightning advance left Russian troops scrambling to retreat, pro-Kremlin Ukrainians fleeing throughout the border into Russia, and Russians in search of solutions after Ukraine recaptured territory alongside the shared border.