Linda Nagata’s 2017 The Last Good Man is a standalone milSF novel.
Four months after Fatima Atwan was kidnapped by El-Hashem’s Al-Furat Coalition, the US State Department has done nothing to rescue her. Fatima’s desperate father turns to military contractor Requisite Operations to do what the State Department either can not or will not do: save the young woman.
By law, Requisite Operations (RO) cannot deliver a ransom. What the law will let them do is attempt a foray into the chaos left after Daesh’s collapse, a foray to retrieve Fatima. Hussam El-Hashem1 may be a mere bandit using religion as justification for robbery and slavery, but he’s no idiot. Not only is his location secret, it changes on a weekly basis.
It would take extraordinary resources to find him. Luckily for Fatima, RO has those resources.