Technology Readiness Experimentation (T-REX) 26-3 (North-REX), hosted by the Office of the Under Secretary of War for Research and Engineering Mission Capabilities (MC), is a Tier 1 experimentation event designed to accelerate the transition of emerging technologies into operational use. The event enables rapid, system-level evaluation of technical maturity and military utility to address critical Joint Force capability gaps, with a focus on Contested Logistics. T-REX 26-3 (North-REX) provides an operationally relevant environment where industry, government, and military stakeholders collaborate to evaluate and refine innovative solutions against real-world mission requirements.