was liberated, and the next day, mayor Roman Krogulski took a pledge of allegiance to the reborn Polish state. During World War I some 200 residents of Rzeszów died, rail infrastructure was destroyed, as well as approximately 60 houses. In 1920, Rzeszów became capital of a county in the Lwów Voivodeship. The town grew, and the creation of the Central Industrial Region had an enormous impact on Rzeszów. It became a major center of the defense industry, with PZL Rzeszów opening there in 1937. It was also was home to a large garrison of the Polish Army, with the 10th Motorized Cavalry Brigade stationed there. In 1939, Rzeszów had 40,000 inhabitants, but its dynamic growth was stopped by the Invasion of Poland and outbreak of World War II. Second World War On 6-8 September 1939, Rzeszów was bombed by the Luftwaffe. The town was defended by the 10th Cavalry Brigade and 24th Uhlan Regiment from Kraśnik. The German attack began on 8 September in the afternoon, and the Wehrmacht entered Rzeszów the next morning. The Einsatzgruppe I entered the city to commit crimes against the population, and its members co-formed the local German police. Under German occupation, Rzeszów, renamed into Reichshof, became part of the General Government. The occupiers established a Nazi prison, in which they imprisoned over 1,100 Poles, especially the intelligentsia, arrested in the region between October 1939 and June 1940, during the Intelligenzaktion. Some people were eventually released, some were deported to prisons in Kraków and Tarnów, while many were executed at the prison yard. On 2 November 1939, the Germans carried out mass arrests of local priests and Bernardine friars, and afterwards, they also carried out executions of Polish intelligentsia at the local Bernardine monastery. Persecution of Polish intelligentsia was continued with the AB-Aktion, and on 27 June 1940, 104 Poles from the local prison were exterminated in the forest of Lubzina. In 1941, the Germans established a ghetto, whose Jewish inhabitants were later murdered in Bełżec extermination camp (for more information see The Holocaust below). During the war, Rzeszów was a main center of the Polish Underground State, with the Rzeszów Inspectorate of the Home Army covering several counties. On 25 May, during Action Kosba, Home Army soldiers killed the Gestapo henchmen Friederich Pottenbaum and Hans Flaschke on a Rzeszów street. In the summer of 1944, during Operation Tempest, units of the Home Army attacked