Some countries consider multiple citizenship undesirable and take measures to avoid it. Since a country only has control over who has its citizenship, but has no control over who has any other country’s citizenship, the only way for a country to avoid multiple citizenship is to deny its citizenship to people in cases when they would have another citizenship. This may take the following forms: Automatic loss of citizenship if another citizenship is acquired voluntarily (such as Azerbaijan, China, Czech Republic, Denmark, India, Indonesia, Japan, Kazakhstan, Nepal, the Netherlands, Norway). Possible (but not automatic) loss of citizenship if another citizenship is acquired voluntarily (such as Singapore, Malaysia, South Africa). Possible … Continue reading Wikipedia