Hohenberg, on their visit to the city, started a chain of events that would lead to World War I. At the end of the Great War and as part of the 1919 Paris Peace Conference, Austria-Hungary ceased to exist. Sarajevo became part of the new Kingdom of Yugoslavia. Yugoslavia After World War I Sarajevo became part of the Kingdom of Yugoslavia. Though it held some political importance, as the center of first the Bosnian region and then the Drinska Banovina, it was not treated with the same attention or considered as significant as it was in the past. Outside of today's national bank of Bosnia and Herzegovina, virtually no significant contributions to the city were made during this period. During World War II the Kingdom of Yugoslavia put up a very inadequate defense. Following a German bombing campaign, Sarajevo was conquered by the Ustase Croatian fascist Independent State of Croatia, a puppet state of Nazi Germany. On October 12, 1941 a group of 108 notable Muslim citizens of Sarajevo signed the Resolution of Sarajevo Muslims by which they condemned the persecution of Serbs organized by Ustaše, made distinction between Muslims who participated in such persecutions and whole Muslim population, presented information about the persecutions of Muslims by Serbs and requested security for all citizens of the country, regardless of their identity. Many of the city's Serbs, Romani, and Jews were taken at this time and killed in the Holocaust bringing a sad end to the prominence of Sarajevo's Jewish community. In 1941, the atrocities committed by the Ustase were strongly condemned by groups of Sarajevo's citizens. The Sarajevo resistance was led by a NLA Partisan named "Walter" Perić. Legend has it that when a new German officer came to Sarajevo and was assigned to find Walter, he asked his subordinate to show him Walter. The man took the officer to the top of a hill overlooking the city and said "See this city?", "Das ist Valter". Walter was killed in the fighting on the day of Sarajevo's liberation, April 6, 1945. He has since become something of a city icon. Following the liberation, Sarajevo was the capital of the republic of Bosnia within the Socialist Federal Republic of Yugoslavia. The communists invested heavily in Sarajevo, building many new residential blocks in Novi Grad Municipality and Novo Sarajevo Municipality, while simultaneously developing the city's industry and transforming Sarajevo once again into