5.The United Kingdom
Scotland never wanted to be a part of United Kingdom. Since last year England is also not a part of the European Union anymore. Critics say that due to this political instability, United Kingdom may not see the light of the day in the next 20 years.
6.The United States of America
Things are not good in America since the arrival of Donald Trump but even back in 2012, 50 American states filed petition to break away from the union.