[2] SUCEE was founded after an initiative of the International Socialist Commission to appeal to the Polish, Czechoslovakian, Hungarian, Yugoslav and Bulgarian socialist parties to form a common centre for coordination of their work in exile.
These five parties met in London on July 4–5, 1949 and founded SUCEE as a joint organization.
[2] A SUCEE conference held in Paris later the same year decided to invite the Estonian, Latvian, Lithuanian and Ukrainian exiled socialist parties to join as members.
[2] The SUCEE conference held in Frankfurt in 1951 decided to invite the Romanian socialists to become a member of the organization.
Nor would any appreciation of peaceful co-existence indicate an acceptance of the division of Europe on behalf of the Eastern European socialists in exile.