Final answer:
Planners use software applications like JOPES to create and modify TPFDD files and build a force list. JOPES allows planners to input data such as unit types, equipment, personnel, and deployment timelines to generate these files.
Step-by-step explanation:
Planners use software applications like the Joint Operation Planning and Execution System (JOPES) to create and modify a Time Phase Force and Deployment Data (TPFDD) file and build a force list.
JOPES is a computer-based system that assists in planning and executing joint military operations. It allows planners to input data such as unit types, equipment, personnel, and deployment timelines to generate TPFDD files and force lists.
These files provide detailed information on the forces and resources required for a specific operation, including transportation requirements, logistics support, and deployment schedules.