built a partisan memorial cemetery monument for the fallen victims. Yugoslav period Tourism gained importance during the communist Yugoslav period and wellness spa and taking to the waters became an important part of the local economy. The Banja Guber was constructed for that purpose. Up to the 1990s over 90,000 overnight stays were recorded and an annual income of about three million dollars generated. Bosnian War The town of Srebrenica came to international prominence as a result of events during the Bosnian War (1992–1995). The strategic objectives proclaimed by the secessionist Bosnian Serb presidency included the creation of a border separating the Serb people from Bosnia's other ethnic communities and the abolition of the border along the River Drina separating Serbia and the Bosnian Serbs' Republika Srpska. The Bosnian Muslim/Bosniak majority population of the Drina Valley posed a major obstacle to the achievement of these objectives. In the early days of the campaign of forcible transfer (ethnic cleansing) that followed the outbreak of war in April 1992 the town of Srebrenica was occupied by Serb/Serbian forces. It was subsequently retaken by Bosniak resistance groups. Refugees expelled from towns and villages across the central Drina valley sought shelter in Srebrenica, swelling the town's population. The town and its surrounding area was surrounded and besieged by Serb forces. On 16 April 1993, the United Nations declared the Bosnian Muslim/Bosniak enclave a UN safe area, to be "free from any armed attack or any other hostile act", and guarded by a small Dutch unit operating under the mandate of United Nations Protection Force (UNPROFOR), which did not get permission to use force from the UN, which they needed to defend the local population. Srebrenica and the other UN safe areas of Žepa and Goražde were isolated pockets of Bosnian government-held territory in eastern Bosnia. In July 1995, despite the town's UN-protected status, it was attacked and captured by the Army of Republika Srpska led by general Ratko Mladic. Following the town's capture, all men of fighting age who fell into Bosnian Serb hands were massacred in a systematically organised series of summary executions. The women of the town and men below 12 years of age and above 65 were transferred by bus to Tuzla. The Srebrenica massacre was the deadliest massacre in Europe since World War II, being the only incident in Europe to have been recognized as a genocide since the Holocaust.