A US citizen can also just renounce their citizenship, and the US won't care if they have another citizenship.
Other countries are more restrictive. For example, Russia (a signatory of that convention) requires people to prove that they have another citizenship ready before they allow the renunciation to proceed.
A US citizen can also just renounce their citizenship, and the US won't care if they have another citizenship.
Other countries are more restrictive. For example, Russia (a signatory of that convention) requires people to prove that they have another citizenship ready before they allow the renunciation to proceed.