In the elections of 1956 the Progressive Party and the Social Democratic Party joined forces and formed an electoral alliance that became known as the "Fear-Alliance" (Icelandic: Hræðslubandalagið, the fear in question being the fear of the Independence Party).
Pada pemilihan 1956, Partai Progresif dan Partai Sosial Demokrat bergabung dan membentuk aliansi elektoral yang dinamai "Aliansi ketakutan" (Hræðslubandalagið), yang didasarkan atas ketakutan atas Partai Kemerdekaan.