This move towards the EEC led to desire for a formal Nordic treaty. The Helsinki Treaty outlined the workings of the council and came into force on 24 March 1962. Further advancements on Nordic cooperation were made in the following years: a Nordic School of Public Health, a Nordic Cultural Fund, and Nordic House in Reykjavík were created. Danish Prime Minister Hilmar Baunsgaard proposed full economic cooperation ("Nordek") in 1968. Nordek was agreed in 1970, but Finland then backtracked, stating that its ties with the Soviet Union meant it could not form close economic ties with potential members of the EEC (Denmark and Norway). Nordek was then abandoned.