There were two serious attempts to abrogate the bilateral defence agreement with the United States; during the tenure of the left-wing governments of 1956-58 and 1971-1974. These attempts failed though. The Hungarian Uprising of 1956 made it unfeasible for the 1956-58 government to make radical changes to Iceland's security arrangements. While the 1971-1974 government's rhetoric was consistent with a desire to expel US forces from Iceland, the two moderate parties in the government were divided on the matter (the Socialist Party was strongly in favor though). Elites within the two moderate parties tended to support the continuing presence of the base whereas the grassroots in both parties were opposed. The Icelandic government could only agree on revising the US Defence Agreement and impose some restrictions on US actions. The US military remained.