What kind of routes does the sustainment overlay include?

The sustainment overlay includes main and alternate supply routes to ensure that logistics and supplies can flow effectively throughout the area of operations. These routes are crucial for maintaining operational capability, allowing forces to receive necessary supplies, reinforcements, and other logistical support. Proper planning and identification of main and alternate supply routes are essential for sustaining forces in large-scale combat operations, as they enable the movement of resources even when primary routes may be compromised or under threat.

The focus on both main and alternate routes allows military planners to create a more resilient supply chain, maximizing readiness and efficiency in logistics. This is particularly important on the battlefield, where conditions can change rapidly and alternative routes may need to be utilized to adapt to the situation.