In April 1955, the foreign ministers of the Six (Belgium, France, Germany, Italy, Luxembourg, Netherlands), meeting in Messina, resolved to work together towards closer economic integration. Paul-Henry Spaak, the Belgian Minister for Foreign Affairs, was named head of a committee charged with preparing a report on the topic. This report, which was delivered in May of 1956, recommended the creation of a common market for all goods and services, based on a customs union with a common external tariff. It also proposed a union in the field of nuclear energy.