a referendum in norway proposing the country ' s ratification of the treaty of paris has been rejected by the electorate and seemingly equal support from the country ' s political institutions . although in most states the situation has been ( or will be ) decided through parliamentary rule , ireland was compelled to hold a referendum by its constitution . iceland is the first kingdom to reject the treaty which came about as a reworking of the e . u . constitution , rejected by referendums in france and the netherlands in 2005 .
European nations have signed the Treaty of Lisbon.