>>12650488 (lb)

>30 days

I don't think so. They are there until the conditions of this law are met.

https://dod.defense.gov/Portals/1/Documents/pubs/DoD%20Law%20of%20War%20Manual%20-%20June%202015%20Updated%20Dec%202016.pdf?ver=2016-12-13-172036-190

The answer you are looking for might be in paragraph 11.3