RIMPAC 26 Turns the Pacific Into a Testbed for 3D Printing, Drones, and AI-Driven Supply

The largest wargame on Earth gets a manufacturing upgrade

Rim of the Pacific 2026, the biennial naval exercise that pulls ships and troops from across the globe to Hawaii through July 31, has a new headliner: not a ship or a missile, but a supply chain. Across this year's drills, 3D printers, autonomous drones, and AI are taking center stage as the U.S. Navy and Marine Corps test whether they can make their own parts on demand, far from a depot.

USS Essex becomes a floating factory

The amphibious assault ship USS Essex (LHD-2) is the centerpiece of large-scale additive manufacturing trials during RIMPAC 26. The idea is self-repair at sea: rather than waiting on a logistics tail that stretches halfway around the planet, crews print the bracket, manifold, or fixture they need where they are. For an expeditionary force, the ability to close a supply gap in hours instead of weeks is a step-change in operational tempo.

Marines call it 'Uber for manufacturing'

Marine Lt. Col. Michael Radigan framed the shift bluntly: "This is Uber for manufacturing delivered at the speed of Amazon, for the highest quality of parts." The pitch is distributed production, where a network of printers and fabricators replaces a centralized warehouse, and a front-line unit summons a part the way a rider summons a car.

Drones and AI close the loop

Additive manufacturing doesn't operate in isolation here. Autonomous drones extend the reach of forward units, and AI helps triage what to make, where, and from what feedstock. Together they sketch a logistics model built for contested, distributed operations, where the assumption of safe, predictable resupply no longer holds.

Why it matters

Military interest has been a reliable accelerant for 3D printing maturity, pushing rugged printers, qualified metals, and certifiable workflows into the field years ahead of civilian adoption. If RIMPAC 26 proves that printed parts can be trusted at the point of need, expect the same distributed-manufacturing playbook to influence disaster response, remote mining, and offshore industry, anywhere the supply chain is the weakest link.