On 4 December 1963, Aldo Moro formed the first centre-left government with the support of the Italian Socialist Party (PSI).
In 1968 Moro resigned as Prime Minister and the new Premier, Giovanni Leone, formed a cabinet composed only of DC members.
After few years the Christian Democratic leader Mariano Rumor, proposed a new government coalition composed of centre-left parties.
The Rumor cabinets approved the divorce law, a new Workers' Statute, the creation of the Antimafia Commission and a reform to give more powers and autonomy to the Regions.
Internationally, the coalition relied on a strong pro-Europeanism and atlanticism from a pro-Arab policy, (Craxi and Andreotti).