Ukraine Prepares to Defend City It Retook After 2014 Revolt

SLOVYANSK, Ukraine—Russian forces kept up artillery strikes in eastern Ukraine on Saturday, while the defending troops braced for what Ukrainian officials expect will be a new push toward this nearly empty city where separatists helped kick off the Moscow-backed uprising in Ukraine eight years ago.

Russian troops have lobbed artillery shells and missiles into Slovyansk and surrounding towns over the past day, keeping up pressure on a heavily fortified foothold still held by Ukrainian troops in the Donetsk region.