After UK president, Cameroon's decision to get isolated from European Union, moment has turned into deep silence worldwide. Unity of 27 countries which have made huge Union in which Great Britain too used to get tagged as European Country will no more be an European anymore.
Though some process must have to go through to get isolation from Union for which leaders from 27 countries are in regular meeting. After UK gets isolation and again if it wants to be part of EU, it has to apply again like other country.