Hazrat Ata says that it is adultery. Hazrat Mujahid says that it is adultery. Hazrat Ikrimah says that it is adultery except for those women whom you own. Hazrat Ibn Abbas (may Allah be pleased with them) says that except for those women whom you own. Other scholars say that it is permissible to have intercourse with captive women of the enemy in the case when their husbands have also been captured.