Birth tourism
Some countries do not allow their citizens to renounce their citizenship or only if the citizenship was acquired by birth there to non-citizen parents. In Argentina, Brazil, Ecuador, Peru, and Uruguay, voting is compulsory for citizens. In Bolivia, Brazil, Chile, Colombia, Cuba, Guatemala, Paraguay, and Venezuela, military service is mandatory.
Disfranchisement
The United Kingdom suspends suffrage of some but not all prisoners. For example, civil prisoners sentenced for nonpayment of fines can vote. Prior to the judgment in "Hirst v United Kingdom (No 2)", convicted prisoners had the right to vote in law but without assistance by prison authorities, voting was unavailable to them. In Hirst, the European Court of Human Rights ruled that First Protocol Article 3 requires Member States to proactively support voting by authorized inmates. In the UK, as of 2009 this policy is under review as in other European countries like Italy.