sentences:  In 1992–93, Nasir defied the UN arms embargo placed on Bosnia and Herzegovina when he successfully airlifted the POF's sophisticated anti-tank guided missiles, which ultimately turned the tide in favour of Bosnian Muslims and forced the Serbs to lift the siege much to the annoyance of the U.S. government.While airlifting sophisticated anti-tank guided missiles to Bosnian Muslims, he pushed the Government of Pakistan to allow the Bosnian to immigration Pakistan.In 2011, the International Criminal Tribunal for the former Yugoslavia demanded the custody of the former ISI director for his alleged support of the Inter-Services Intelligence activities in Bosnia and Herzegovina to Muslim fighters of Bosnia against the Serbian army in the 1990s, the Government of Pakistan has refused to hand Nasir to the UN tribunal, citing poor health.