After relieving Transylvania he was sent to drive the Austrian General Anton Freiherr von Puchner out of the Banat region. Bem defeated von Puchner at Orsova (now Orșova) on May 16, but the Russian invasion forced Bem to retreat to Transylvania. From July 12 to 22 Bem was fighting continually, but finally, on July 31, his army was annihilated by overwhelming numbers in the Battle of Segesvár (now Sighişoara); Bem escaped after feigning death. He fought a fresh action at Nagycsür (now Șura Mare) on August 6, and contrived to bring his fragmented army to the Battle of Temesvár (now Timișoara), to aid the hard-pressed General Henryk Dembiński. Bem was in command and was seriously wounded in the last pitched battle of the war, fought there on August 9.