<prompt> Pedzisa mutsara unotevera: Kugadziriswa Kwechitatu, kwakapfuudzwa muna 1972, kwakabvumira Ireland kujoina European Communities. Muna 1986, hurumende yakasaina Single European Act SEA. Zvisinei, Raymond Crotty akatsvaka murairo wokurambidza kugamuchirwa nehurumende. MuCrotty v. An Taoiseach 1987, Dare Repamusorosoro rakatonga kuti kuenderera mberi kwekutamisa masimba kubva kuhurumende kuenda kumasangano eEuropean mukati meSEA kwakanga kusiri kunodiwa nezvisungo zvekuva nhengo dzeCommunities sezvinotarisirwa neChitatu Chekugadzirisa. Somuuyo, Bumbiro reMitemo raida imwe shanduko, SEA isati yagona kusimbiswa. Ikoku kwakaitwa murunyararo gare gare muna 1987. Pachishandiswa hwaro ihwohwo, dzimwe referendamu pamusoro peZvibvumirano zveEurope dzakaitwa paZvibvumirano zveMaastricht muna 1992, paZvibvumirano zveAmsterdam muna 1998, paZvibvumirano zveNice muna 2001 na2002, uye paZvibvumirano zveLisbon muna 2008 na2009.  <response>: muna 2009. Referendamu dzakaitwawo kubvumira Hurumende kuti isungirwe neChibvumirano cheChishanu Chishanu muna 1998, uye kubvumidza International Criminal Court muna 2001 uye Chibvumirano cheKugadzikana muna 2012. 