<P> The Lisbon treaty was ratified by the Danish parliament alone . It was not considered a surrendering of national sovereignty, which would have implied the holding of a referendum according to article 20 of the constitution . Currently, the Danish government wants a referendum on the opt - outs from the EU - treaty, but the prospect of the opt - outs perhaps being rejected does not look appealing . The issue is being postponed for the time being, or until a large coalition of political parties support holding a referendum . </P> <P> In October 2012, Prime Minister Helle Thorning - Schmidt demanded a 1 billion kroner rebate in the Budget of the European Union, otherwise she would veto against the budget . In February 2013, Denmark and the European Union reached an agreement on a seven - year budget, to approve Danish demand . </P> <P> On 25 May 2014, the Danish Unified Patent Court membership referendum was approved with 62.5% of the vote, enabling the government to proceed with the ratification of the Agreement on a Unified Patent Court, which constitutes the legal basis for the Unified Patent Court . </P> <P> Two political parties in the Danish parliament call themselves eurosceptic: the Danish People's Party and the Red - Green Alliance . Over the years, many anti-EU organisations have been established, for example People's Movement against the EU and the June Movement . </P>

Who joined the eu first greece or austria