It came from the number of his Turkish counterpart, Gen. Hulusi Akar, the leader of Turkey’s military and a critical ally in the fight against ISIS. But when Dunford’s office staff answered, it wasn’t Akar’s voice on the other end of the line — it was his kidnappers’, who, hours before, had started waging a bloody coup in the streets of Turkey. With Turkey’s top general and presidential confidante held hostage, they needed Dunford’s support.