what is known as the "Igman March". With temperatures reaching , 172 Partisans suffered severe hypothermic injury, 6 of whom died.[12] When they approached the German–Italian demarcation line south of Sarajevo, the Partisans were able to infiltrate through the weak Italian cordon. A monument in memory of the Partisan struggle in this area is to be found on Veliko Polje. Bosnian War Mount Igman was usurped in the course of the Bosnian War, and suddenly became an area of major strategic importance as part of the Siege of Sarajevo. The predominantly Bosniak villages of Hrasnica and Butmir held out as an ARBiH stronghold between the VRS-held villages of Ilidža and Vojkovići, forming a corridor connecting the slopes of Mt Igman with the UN-controlled airport of Sarajevo. After the completion of the Sarajevo Tunnel under the airport in July 1993, the small unpaved forest road passing over Mt Igman became the sole important supply road into the besieged city. The ARBiH-controlled central plateau of Igman came under increased VRS pressure when the suspicion became stronger that the area had become a major logistical artery of the besieged city. A major VRS offensive started July 1993 and on August 4, 1993 Serb forces captured part of the Igman supply road. The VRS advance was stopped under threat of NATO airstrikes. The area was declared a Demilitarized Zone (DMZ) by the UN after the VRS retreated and UNPROFOR units were stationed on Igman and nearby Bjelašnica. The supply road into Sarajevo was agreed to be used for humanitarian goods only, but ARBiH logistical activity on the road and through the tunnel continued nevertheless. Discussion about real or alleged reluctance to withdraw ARBiH forces from the DMZ was a growing issue between UNPROFOR Commander General Rose and ARBiH Commander General Delić, with VRS Commander Mladić waiting for an opportunity to close the gap. Trucks on the Igman supply road's narrow last stretch descending the steep north-eastern slope became fully exposed to fire from VRS artillery positions in Ilidža and Vojkovici. Meanwhile, the ARBiH units remaining on the plateau were formally restricted to R&R activities, notably resulting in the building of the Igman Džamija, a wooden mosque in the forest, still much frequented today. The Igman supply road remained the almost exclusive supply route into Sarajevo until the end of the war. It was also the only entry and exit road for the Bosnian political