Military mobility is the ability to move troops, equipment, and supplies quickly across borders and through transport networks. It depends on physical infrastructure such as ports, railways, bridges, tunnels, and roads, but also on the digital systems that schedule, authorize, monitor, and restore those services. In cyber security, this matters because a delay in one supporting system can slow an entire movement corridor.
Attackers do not need to destroy infrastructure to affect military mobility. Weak identity controls, poor network segmentation, compromised vendor access, or outages in communications and energy systems can create bottlenecks, confusion, or recovery delays. Defenders protect mobility by inventorying critical assets, limiting third-party access, monitoring operational technology, testing backup routes and communications, and planning for degraded operations. In practice, military mobility is a cyber-physical security problem: keeping the transport chain available, trusted, and resilient under pressure.