1-43. Force tailoring is the selection and sequencing of forces for deployment. Army force packages are primarily developed by the Department of the Army and its subordinate commands based on the requirements determined by the theater army. These requirements may be part of either security cooperation plans or contingency plans to react to a crisis. When analyzing the mission to determine what fires capabilities are required, staffs should examine their target list with the commander to receive guidance on the commander’s objectives and what effects must be created against each target. Additionally, the staff should review the defended asset list (DAL) with the commander to determine what assets are required to defend against air and missile threats. These discussions should inform what fires capabilities are required. The commander and staff must also determine when those capabilities are likely to be required. As discussed above, commanders may use fires as flexible deterrent and response options, and deployment of these capabilities should be prioritized to allow the commander to either deter escalation or respond to aggression.