relations between the two countries. In 2016, the Sinn Féin party president, Gerry Adams was invited by the Cuban government to attend the state funeral of Fidel Castro whom Adams described as a "freedom fighter" and a "friend of Ireland's struggle". Sinn Féin is opposed to NATO membership. European Union Historically, Sinn Féin has been considered to be Eurosceptic. The party campaigned for a "No" vote in the Irish referendum on joining the European Economic Community in 1972. Sinn Féin was on the same side of the debate as the DUP and most of the Ulster Unionist Party (UUP) in that they wanted to pull out when UK had its referendum in 1975. The party was critical of the supposed need for an EU constitution as proposed in 2002, and urged a "No" vote in the 2008 referendum on the Lisbon Treaty, although Mary Lou McDonald said that there was "no contradiction in being pro-Europe, but anti-treaty". In its manifesto for the 2015 UK general election, Sinn Féin pledged that the party would campaign for the UK to stay within the European Union (EU), with Martin McGuinness saying that an exit "would be absolutely economically disastrous". Gerry Adams said that, if there were to be a referendum on the question, there ought to be a separate and binding referendum for Northern Ireland. Its policy of a "Europe of Equals", and its critical engagement after 2001, together with its engagement with the European Parliament, marks a change from the party's previous opposition to the EU. The party expresses, on one hand, "support for Europe-wide measures that promote and enhance human rights, equality and the all-Ireland agenda", and on the other a "principled opposition" to a European superstate. This has led political commentators to define the party as soft Eurosceptic since the 21st century. Since moving to this "soft Euroscepticism" position, Sinn Féin support a policy of "critical engagement with the EU", and have a "principled opposition" to a European superstate. It opposes an EU constitution because it would reduce the sovereignty of the member-states. It also critiques the EU on grounds of neoliberalism. Sinn Féin MEP Matt Carthy says that the "European Union must become a cooperative union of nation states committed to working together on issues such as climate change, migration, trade, and using our common strengths to improve the lives of citizens. If it does not, EU disintegration becomes