Destruction of Kalisz The destruction and sacking of the city of Kalisz ( ) occurred in August 1914 . It was perpetrated by German Empire troops . From August 2 until August 22 , 1914 at the beginning of World War I , one of the oldest towns in Poland ( then under foreign Partitions ) , was shelled , bombed and burned down . The event is also known as the Pogrom of Kalisz or Poland ’ s Louvain ( see " Schrecklichkeit " atrocities ) . Kalisz was founded in the 13th century on an ancient site encircled by the Prosna river . It has a typical mediaeval urban structure . On February 13 , 1793 , Kalisz and the Kalisz region was annexed by Prussia during the partition of Poland ; but after Napoleon ' s defeat on the Eastern front , it was taken over by Imperial Russia , which subsequently controlled the city for more than 100 years – from February 14 , 1813 , until August 2 , 1914 . The Prussian army invaded Kalisz from the nearby Ostrów Wielkopolski on August 2 , 1914 . Major Hermann Preusker , the commander of the second battalion of the 155th Infantry Regiment , gave the order to burn down the city . As a result , 95 % of Kalisz was completely destroyed . Most of the houses within the mediaeval town area were levelled to the ground . Only churches and public offices survived . A significant number of citizens were shot . After the war , Kalisz which before the war had 65 , 000 citizens , was left with 5 , 000 inhabitants following the August exodus . The recovery took years ; however , even before the war ended , the Town ' s Council already decided to rebuild Kalisz in such a way as to reflect its long history . The reconstruction was based on a design which won the 1916 competition , although the German authorities opposed it . After the town was liberated from Germany in 1918 and became part of the reborn sovereign Poland , reconstruction was pursued in an energetic and enthusiastic way . Outbreak of World War I . The Russians pull out . The first inclination of the war reaching Kalisz was when the nearby border with the German Empire was closed at Nowe Skalmierzyce and rail movements across the border to Germany were stopped . Russian officials began evacuating the city alongside military personnel . On August 2 , 1914 , at dawn , the Russian military retreated from the city without fighting , after setting fire to military warehouses near the railway station . It was set on fire as well as the trains and transport wagons . A civic committee was established by the citizens of the town which began to administer the city . Additionally , the Civil Guard was established to keep order , while workers tried to put the fire at the railway station out . The Germans move in . First German soldiers appear . Around 14 : 00 , on August 2 , the first German patrols appeared along the railway tracks . As the patrols increased , crowds gathered . Altogether the atmosphere was neutral , although some unfavourable comments could be heard from among the citizens of Kalisz . When a German officer arrived , mayor Bukowiński gave him the keys to the city as a symbolic gesture . After ensuring that there were no Russian forces present , the German patrols wihdrew to Szczypiorno . In later hours , other German soldiers started to arrive on bicycles . Many of them were Poles from the nearby town of Ostrzeszów , and there was no hostility between them and the local Polish population . The German soldiers of Polish extraction ( about 30 in number ) , quickly separated from the rest of the Germans and went to the market , where they engaged in conversation with the local population and drank beer with them . German soldiers remained separated and struggled to engage in conversations which were carried out in Polish . Arrival of the main German forces . Only on the night of 2 and 3 of August around midnight , did the main German forces come from the Fifth Company of the 155th regiment of infantry in Ostrów . The commander , Captain Keild , immediately demanded lodgings for his troops and summoned the mayor . On the same night , forces of Major Hermann Preusker came to the city from the 2nd Battalion of infantry . Preusker immediately took over and named himself the commandant . At the selection of quarters , Preusker showed great displeasure and demanded the building housing the Musical Society and Christian Craftsmen in the city instead of at the Russian military barracks . At dawn on 3 August , mortars were brought into the city . At the same time , Major Preusker started arguing with the city council , although those worthies had fulfilled his every request . Some believed he was disappointed with the lack of resistance and the indifferent attitude to German soldiers by the Polish population , which had begun to establish personal connections with the ethnic Polish soldiers from the German - controlled part of the partitioned country . Some of those soldiers did not show any support for the war and even condemned the conflict . Executions and repression . In the late evening , a single shot was heard , which began panic and confusion among the city population ; it was followed by machine gun fire . After this short event , peace returned to the area . During the night the firing resumed , when German soldiers started to shoot at each other , probably thinking that they were surrounded by Russian forces . Although the civilians stayed at home , 21 of them and six soldiers were dead and 32 soldiers were wounded . Major Preusker claimed that it was the local population that carried out the shooting . On August 4 , Preusker took six citizens as hostages , 50 , 000 rubles of retribution , a Curfew , a ban on publishing newspapers , and the threat of taking further hostages and executions . Despite this , the Germans continued with further repression and executions . Civilians were brutally beaten , often with rifle butts ; at any sign of resistance , people were shoved against a wall and shot . Many executions happened near the hospital where wounded people were taken . Several corpses were left in the street . Numerous pedestrians were mistreated and any signs of opposition were quelled with such brutality and under such conditions that there were cases where soldiers refused to follow the orders of their officers . Up to 20 people were murdered in this way . Shelling and raids into the city . After taking their hostages with them , the Germans started to retreat from the city in late afternoon . An hour later , artillery fire was laid down on the city from nearby hills . It was very efficient as Kalisz is located in a deep valley . Additionally , the Germans had ordered the day before that all citizens should illuminate their homes , which helped in directing the fire . This continued for several days , with the Germans staging short raids into the city . As the shelling started fires , general panic broke out , and even as the Germans threatened to kill anybody escaping , people tried to escape by whatever means they had . Large crowds of panic - stricken people , including children and the elderly with any possessions they could grab , were running from the city , which became almost deserted . On August 5 , 10 , 000 people fled the shelled town . The Germans took additional hostages , mistreating them and even killing some . Only after the intervention of the Catholic Church , were some released and others sent to POW camp s in Cottbus in Germany . Massacre of civilian population . As the situation seemed to calm down , new forces from Saxony arrived , while Major Preusker ' s soldiers were withdrawn . Another incident happened on August 7 on Main Market Square , when a lone horse ran free ; as a result , German soldiers started shooting in a disorganised way , which led to the death of some of them . Artillery was positioned within the city and the Germans fired at civilian buildings for over an hour . About 100 civilians died in this incident . The Germans searched for survivors and when they found them , they stabbed them to death with bayonets . During the afternoon , City Hall was set on fire , and officials executed . The Germans retreated and shooting began again , which continued overnight between 7 and 8 August . On Saturday morning , the Germans returned to the city , taking 800 men prisoner and executing 80 of them on a nearby hill . The following day , the Germans started to systematically burn down the city . It is mentioned that in cases where civilians tried to fight the fire , they were murdered by German soldiers . The shootings , murderers , plunder of shops and homes as well as the burning down of the whole city lasted until 22 August , when the last home was set alight on Nowoogrodowska street . The Polish press in all territories of Partitions reported extensively on the event , some calling it " monstrous madness , that is unbelievable " . The damage in Kalisz constituted 29 , 5 % of the losses in the entire Congress Poland during World War I . The destruction has been compared to the massacre of Louvain , where a city was destroyed in similar manner by the Germans . Before the war Kalisz had 65 , 000 citizens ; after the war , there were only 5 , 000 left .