5-37. Commanders at all echelons plan for logistic and medical support to indigenous populations affected by combat operations. The land component, corps, and division headquarters staffs typically work directly with any host-nation authorities located within or responsible for portions of their AOs to identify the minimum-essential support that U.S. forces must provide to meet international accords. Corps and division staffs collaborate with the land component, theater army, and joint task force staff to forecast requirements for each successive phase of operations. As required, the theater army requests additional Army units to manage stability tasks in its AO.