Baruch Steinberg was born on 17 December 1897 in the town of Przemyślany to a Polish Jewish family with tradition of rabbinical service. During the First World War his family moved to Vienna; there in 1916 he was elected a rabbi, passing the required examinations in the following year and returning to Przemyślany. He joined the Polish Military Organisation, providing services for Polish Jewish soldiers. In November 1918 he volunteered to join Polish forces in the Polish-Ukrainian war, he fought alongside the Polish forces in the battle of Lwów and remained on the frontlines until Polish forces took control of Przemyślany in May 1919.File:Baruch Steinberg.JPG|thumb|220x220px|Major Baruch Steinberg, Chief Rabbi of the Polish Army, with Polish Army officers, presumably Jewish, at the Postępowa Synagogue, Kraków, on 5 September 1935. In the photo he is holding what looks like a memorial tablet. Jewish Polish Army veterans of the War of Independence met in Kraków on 5 September 1935 to offer a collective prayer for Marshal Jozef Pilsudski, who died in May.In 1922 he officially joined the Polish Army, becoming a rabbi chaplain. His applications for full service were rejected, the reasons cited were his lack of formal education and opposition from the Orthodox Jewish faction, as Steinberg was seen as a member of a zionist camp. In 1927 Steinberg passed his matura exams and started studies at University of Lwów in oriental studies. In 1928 he was accepted into active service in the Polish army, with the rank of professional rabbi, becoming the Chief Rabbi of the Third Corps Region of the Polish Army. In 1929 he was promoted to rabbi, first class. A few years later he would be promoted to senior rabbi, second class. In 1931 he was moved to First Corps Region in Warsaw, in 1932 he also served on the Fifth Corps Region in Kraków. In 1933 he replaced Chaim Elizjer Frankl as the chief of Main Office of Judaism Chaplainship, first on a temporary basis, from 1935 on a permanent basis. In 1936 he became the Chief Rabbi of the Polish Army. Steinberg was highly respected and commended by his superiors. He was also known as a supporter of Polish statesmen Józef Piłsudski and his policies, organizing on 11 November religious services in the intention of Poland. He was a supporter of active Jewish participation in the Polish state. In September 1939 he was one of the seven rabbi chaplains in the Polish Army. During the Polish September Campaign he was the Chief Chaplain for Noncatholics in the Army Kraków and chief rabbi of the Polish army. He was taken prisoner by the Soviets after the Soviet invasion of Poland in late September, becoming a prisoner of war. He was imprisoned in the camp in Starobilsk. In Starobilsk he organized services for his fellow inmates, which were also attended by non-Jewish Poles; survivors noted his emphasis on unity of all Poles, regardless of religion. In Starobilsk, Steinberg was arrested by NKVD together with Polish priests and chaplains during Christmas of 1939 and transported to a prison in Moscow. He briefly returned to Starobilsk in March 1940, and then was moved to Yukhnov and later to Kozelsk camps. Steinberg was eventually murdered in the Katyn massacre, probably on 12 April 1940, aged 42.
