А шьто скажет Жюков (Гугль):В случае, (не дай бог) войны, со страной "второго гражданства", пленный защищён Женевской конв. или расстрел как изменника и перешедшего на сторону врага?
What happens if a dual-citizen is drafted by both countries to which the person is a citizen of because the two countries are at war with each other?
Assuming the person is a citizen of the United States and goes to war with the person's other country of citizenship in most cases the person will be guilty of treason against their other country.
So what happens depends on the person and their other citizenship.
- If they are more loyal to the USA than their other country and the other country permits renunciation, they renounce their other citizenship.
- If they are more loyal to the other country than the USA, they depart the USA and go to a US embassy overseas to formally renounce their US citizenship prior to engaging in hostilities.
- If they are more loyal to the USA and their other country considers them a citizen-for-life and does not permit renunciation, they need to notify the US government that their loyalty is to the USA and they renounce their allegiance to their former country officially and they can be considered a traitor for bearing arms against their former country if posted there during hostilities. Many nations with such policies will usually execute you if caught in arms against them.