Ukrainian forces have broken through Russian defences in the south of the country while expanding their rapid offensive in the east, seizing back more territory in areas annexed by Russia and threatening supply lines for its troops. Making their biggest breakthrough in the south since the war began, Ukrainian forces recaptured several villages in an advance along the strategic Dnipro River on Monday, Ukrainian officials and a Russian-installed leader in the area said. Ukrainian forces in the south destroyed 31 Russian tanks and one multiple rocket launcher, the military’s southern operational …