What is the ruling on divorcing a prisoner's wife in a country that prohibits the divorce of prisoners' wives or prolongs the duration of their cases?

The wife of a missing person or a captive, whose news has been cut off, is permitted to request a separation after four years have passed since his disappearance, due to the harm resulting from this absence, especially if she fears committing zina (unlawful sexual intercourse). After the expiry of this period, the wife of the missing person or captive observes the 'iddah (waiting period) of death (four months and ten days), after which she is permitted to marry, without needing a ruling from the ruler or a divorce from her guardian.