Asalamu alikum Wa Rehmatullahi Wa Barakatuh!
wa alaykum as-salam wa rahmatullahi wa barakatuhu
sister, please go through following link,
http://www.islamic-life.com/forums/anti-islamic-refutations/female-slaves-433, and insha'Allah it will answer your questions
but let me post one-two liner answers to your questions; however, I strongly suggest that you do go through above link to get a better understanding of this whole issue.
Dear brother, can it be the case that the husband of the captured female prisoner of war is not dead yet, but is taken as a prisoner himself?
Then in this case, would it be permissible for the Muslim to have physical relations with that female?
yes, because in shari'ah once she was captured during war and distributed to a Muslim male her marriage is nullified.
I read your other posts. One thing I wanted to ask is that why didn't the Muslims simply married these female prisoners of war before having any physical relations with them?
because this is permissible in shari'ah and they were not bounded by the rule of must marrying them first.
And why having physical relations with these females allowed in Islam? What is the logical reason behind it?
1 - because it is legislated by Allah and He made it permissible. He is the judge Who decides what we are allowed to do and what we are not allowed to do. Our standards and moral values are not based upon flawed human reasoning and intellect. Therefore, whatever Allah has legislated has benefit for the creation and there is wisdom behind it.
2 - In Islam, the legal/legislative statements are not based upon human logic or reasoning; therefore, they are not bounded by "must work with human intellect and reasoning and if they do not then they are not logical"; neither, they are required any logical explanation. If one says, this is immoral then he first need to show that his principles of deriving morality is superior than ours.
3 - because instead of dumping them into jails or killing them, it brings lots of benefits for them and all this has been explained thoroughly in the link I posted above and in my previous posts on this forum on this issue.
4 - always and always remember that Islam is haqq and we are here to please Allah. Do not let shaytan get to you and falsehood and misinterpretations enter your heart.
Wouldn't it be unfair with these female prisoners of war that they provided something to the Muslims but were yet not their wives. I mean, what about the "respect thing"?
we humans do not decide what is fair or not fair. It is up to the Creator and since He knows what is best for us He decides laws for us. This is our methodology and not half crooked methodology: "I am capable of deciding what is right and wrong".
Secondly, how the "respect" is not given? They are benefiting in return for what they are providing given that they are captured enemies of war. Just because they provide something, which something a wife would do, does not mean they have to be to wife. and just because they are not wife, does not mean they are not getting the respect.
Yes I know that Islam treats slaves unlike any other religion! It gives them respect and protection but I don't yet know the logic behind having sex with female slaves.
already explained above
Is it that these female slaves are already considered to be married to their masters?
And did the beloved Prophet commanded Muslims to never take anyone as a slave again?
answer to both questions is no
and Allah knows best