The Army can’t guarantee overmatch in future war – a luxury we have had since the end of the Cold War. Our senior leaders are acknowledging it. This is a sobering thought, especially for sustaining the force. As part of the so called “tail,” this changes how we support the future fight. We have spent our entire military careers operating in theaters where our forces have superiority across all domains. Our forces executed resupply operations from the division rear area in relative security. We were able to appropriately prepare to provide logistics across the line of departure, but no longer.