Smaller and in a more precarious position vis-à-vis Libya, Tunisia has consistently made efforts to align with Algeria. In the 1970s, Tunisia reversed its position on the Western Sahara so as not to antagonize Algerian authorities. Tunisia was the first nation to sign the Treaty of Fraternity and Concord with Algeria, in 1983. Throughout Algeria's independent history, it has joined in a number of economic ventures with Tunisia, including the transnational pipeline running from Algeria through Tunisia to Italy. In 1987 the departure from power in Tunisia of President Habib Bourguiba and his replacement by the more diplomatic Zine el Abidine Ben Ali brought the two nations closer again. After the Tunisian Revolution, and the Islamists represented by Ennahda Movement took the reins of power in Carthage, the relations between the two countries has become blurry after a numerous accusations from Tunisian local voices and politicians to the Algerian regime and intelligence regarding the terrorist ambush on a Tunisian Army patrol close to the borders in Monday, 29 July 2013, in which they claim it happened due to Algeria's concerns of a revolution transfer from Tunisia and the need to destabilize the crispy internal security. Tunisia's Internal Affairs minister said that Algeria was relieved that Tunisia is not going to export our revolution to them. They are both members of the African Union.