The United Nations Security Council brokered the Renville Agreement in an attempt to rectify the collapsed Linggarjati Agreement. The agreement was ratified in January 1948 and recognised a cease-fire along the so-called 'Van Mook line'; an artificial line which connected the most advanced Dutch positions. Many Republican positions, however, were still held behind the Dutch lines. The agreement also required referenda to be held on the political future of the Dutch held areas. The apparent reasonableness of Republicans garnered much important American goodwill.