What tool do planners use to create and modify a TPFDD file and build a force list?

The choice of the Joint Operations Planning and Execution System (JOPES) Edit Tool (JET) as the correct answer is based on its specific role in logistics and military planning. JET is designed to facilitate the creation and modification of Time-Phased Force and Deployment Data (TPFDD) files, which are critical for managing the movement of forces and resources during military operations. This tool enables planners to input, update, and refine the data necessary for effective deployment and operational planning.

The TPFDD file itself is essential in outlining the necessary forces and their required timelines for deployment, making JET integral to ensuring accurate and effective planning. Its capabilities allow planners to manage complex operations by manipulating variables related to troop and equipment movement efficiently.

In contrast, while other tools, such as the Logistics Automation System (LAS) or Deployment Planning Software (DPS), play important roles in logistics and deployment processes, they do not specifically serve the same function as JET in relation to TPFDD management. The Air Movement Control Tool (AMCT), also has its own functional focus, primarily dealing with air transportation aspects rather than the broader operational and planning frameworks outlined in JET. Thus, JET is uniquely suited to address the need for TPFDD