Complex sentence: After the battle, on September 23,1944 Hando Ruus and his battalion was cut off by Soviet troops and taken prison, also he fell ill to pneumonia and he was sent to Gatchina, Russia.
Split into simpler sentences: After the battle, on September 23,1944 Hando Ruus and his battalion was cut off by Soviet troops and taken prisoner. He fell ill with pneumonia and he was sent to Gatchina, Russia.