What is the main purpose of the Defense Travel System (DTS)?

The primary purpose of the Defense Travel System (DTS) is to facilitate the creation of travel authorizations and manage travel expenses for military personnel. DTS streamlines the travel process by providing a centralized system where service members can plan, book, and manage official travel. It allows users to submit travel requests, track travel itineraries, receive approvals, and manage reimbursements efficiently. This ensures that all travel-related actions are compliant with military regulations and that service members can quickly receive the funds they need for travel expenses.

The other options, while relevant to military operations, do not accurately describe the functionality of the Defense Travel System. Managing unit training records, tracking soldier healthcare records, and overseeing unit financial expenditures pertain to different systems and processes within the military that address specific needs outside the scope of DTS.