[1] Dalloul was named as the minister of defense on 31 October 1992 and served in the post in the first cabinet of Rafiq Hariri until 25 May 1995.
It was Syrian vice president Abdul Halim Khaddam who helped Dalloul to assume significant cabinet posts.
[7] In 2010 Dalloul argued that Iran should possess nuclear arms which should not be used only to maintain peace in the region, but also to have a dissuasive force against Israel.
[3][9] Nizar and Ali Dalloul have business investments and were among the shareholders of LibanCell, Lebanese cell phone company, between 1994 and 2002.
[10][11] Dalloul's sons were granted the license for the cell phone operator when their father was serving as defense minister in the Hariri cabinets.
In the late 1990s the shareholders of LibanCell included Telecom Finland, also known as Sonera (14%),[12] and Saudi Al Mabani (20%).