Explore the challenges and solutions of tactical cluster federation at the edge in this conference talk. Delve into the complexities of managing Kubernetes clusters in unstable network environments, with resource-diverse and mobile clusters that spontaneously join, unjoin, and re-join. Learn about the innovative approaches developed by TNO and the Dutch Ministry of Defence for creating resilient, distributed, and collaborative computation in tactical cloud environments. Discover the use of Liqo for distributed federation, the combination of Telemetry Aware Scheduler (TAS) and Optimized Link State Routing (OLSR) for network-aware scheduling, and Chaos Mesh for simulating network effects. Gain insights into the tactical cloud concept where manned or unmanned vehicles form ad-hoc cloud constellations, pushing the boundaries of elastic mobile cloud capabilities.