Complex sentence: For the next three days Russian special forces, supported by heavy weapons, tried to break into the village, losing at least 12 troops killed, including Colonel Andrei Krestyaninov, commander of Moscow SOBR.
Split into simpler sentences: For the next three days Russian special forces tried to break into the village, supported by heavy weapons. They admitted losing at least 12 killed, including Colonel Andrei Krestyaninov, commander of Moscow SOBR.