The coalition was formed in December 2012, composing ten groups, and led by Usama al-Nujayfi.

Among the groups composing Muttahidoon were several of the largest Sunni political blocs, including the Ninawa-based al-Hadba list, the bloc of former Awakening Movement leader Ahmed Abu Risha, the National Future Gathering bloc of former Finance Minister Rafi al-Issawi, the Iraqi Islamic Party, and the Iraqi Turkmen Front.

Altogether the parties aligned with the coalition had won 42 seats in the 2010 parliamentary election.

[1] For the 2013 governorate elections the coalition competed in Ninewa, Salah ad-Din, Baghdad, Anbar, and Basra.

[3] The following parties make up the coalition:[4] The coalition has been criticized by other Sunni political formations aligned with Prime Minister Nouri al-Maliki of following a Muslim Brotherhood direction, and there have been insinuations of the group having ties with groups outside Iraq.