The UkraineEuropean Union Association Agreement resulted in the EU withholding access to research from Ukraine.
 The provision for an association agreement was included in the Treaty of Rome, which established the European Economic Community, as a means to enable co-operation of the Community with the United Kingdom, which had retreated from the treaty negotiations at the Messina Conference of 1955
25), but for the total "retention" tax levied under the EU-CH agreement (EUR 175)

