In 1995 Gen. Mladić plans another offensive in eastern Bosnia and takes it into action. The offensive succeeds due to the inaction of the UN peacekeeping forces. Serb forces take Dutch peacekeepers hostages, and assault the towns of Srebrenica and Žepa, both designated 'safe areas' by the UN. Bosnian forces firmly believed that the UN troops would protect them from attack, hence they were totally unprepared. Both Srebrenica and Žepa fall to the Serbs. Over 8,000 Bosniak males were massacred in Srebrenica, while the Bosniak population in Žepa was expelled. The UN's peacekeeping efforts in Bosnia have failed. After suffering much diplomatic humiliation at the hands of Bosnian Serbs, the United States begins bombing strategic Serb positions. Now the Serbs have turned the rest of the world their enemy; a joint Croat-Bosnian offensive drives most Serbs out of northern Bosnia, and the Serbs return to the negotiating table. Sacco came to Goražde in the immediate aftermath of these events through the 'blue road', a narrow road opened by the UN peacekeepers that links sieged Goražde to the rest of Bosnia.