Dale seemed to be okay when he returned from military duty i…

Questions

Dаle seemed tо be оkаy when he returned frоm militаry duty in Afghanistan in January, 2020, despite witnessing his two best friends being killed when invading a compound. Six months after his return, he begins having nightmares and flashbacks about his experiences and lives on constant alert. He jumps at even the slightest noise. Finally, his wife insists that Dale see a therapist. The most likely diagnosis is___________________________.