Ukrainians Strengthen Defensive Positions Near Kupiansk As Russian Troops Probe Frontline

KUPIANSK, UKRAINE - FEBRUARY 13: A Ukrainian officer steps out of a muddy trench network, as Ukrainian armed forces strengthen multi-layered defensive positions and Russian troops probe the frontline with aerial and artillery attacks on February 13, 2024, east of Kupiansk, Kharkiv Oblast, Ukraine. Russian forces are reported to have amassed 40,000 troops and 500 tanks on the opposite side of the frontline, in a bid to reclaim territory in Kharkiv region lost in September 2022 during a lightning Ukrainian offensive. (Photo by Scott Peterson/Getty Images)