What is international law regarding citizens living in a hostile nation during the outbreak of war?

Anthony C: What is international law regarding citizens living in a hostile nation during the outbreak of war?
Suppose, for example, I am a U.S. citizen residing as an alien in France when the two declare war on each other (hypothetically). What is international law regarding my rights? If there is no such law, what is precedent or custom?

Answers and Views:

Answer by Joey
Duck!!!

Answer by ⌡Machine Head⌠
If you do not have diplomatic immunity, you would be considered an enemy national; You could request safe conduct to a neutral nation, but you are not guaranteed it under international law. In principle you could be imprisoned for the duration, but would probably be placed in a parole status with severe restrictions on your travel and where you could work.

Answer by Chris A
You’d probably be a protected person under GC IV. Mostly you go about your life, but you can be interned if it’s deemed necessary for the security of your host nation.