A joint terminal attack controller (JTAC) directs military aircraft during combat operations. Your duties in a theater of operation include communicating with planes, drones, and helicopters and giving directions to help them provide support for military units on the ground. In this career, you also have training responsibilities. A JTAC operator often participates in training scenarios. In these cases, you usually work with a JTAC instructor, who helps you learn procedures and evaluate tactics. As a teacher, you provide simulator instruction and evaluate performance during simulations or war games. You then help JTAC personnel correct mistakes.