Achille Van Acker was a Belgian politician who served three terms as the prime minister of Belgium between 1946 and 1958. A moderate from Flanders, Van Acker was a member of the Belgian Socialist Party (PSB–BSP) and played an important role in the creation of the Belgian welfare state after World War II.

Gaston François Marie, Viscount Eyskens was a Christian democratic politician and prime minister of Belgium. He was also an economist and member of the Belgian Christian Social Party (CVP-PSC).