Tag Archives: Tactical Undersea Network Architectures (TUNA) program

Imagine! Mosaic Warfare, how to fight like a network

image from wikipedia

DARPA’s Strategic Technology Office (STO) on August 4, 2017 unveiled its updated approach to winning or deterring future conflicts. The foundation of STO’s new strategy rests on the recognition that traditional U.S. asymmetric technology advantage—such as highly advanced satellites, stealth aircraft, or precision munitions—today offer a reduced strategic value because of growing global access to comparable high-tech systems and components, many of which are now commercially available. Additionally, the high cost and sometimes decades-long development timelines for new military systems can’t compete with the fast refresh rate of electronics component technology on the commercial market, which can make new military systems obsolete before they’re delivered.

STO’s updated strategy seeks a new asymmetric advantage—one that imposes complexity on adversaries by harnessing the power of dynamic, coordinated, and highly autonomous composable systems.

“We’ve developed a technology-based vision that would enable highly complex, strategic moves by composing multiple contributing systems to enable what might be thought of as ‘mosaic warfare,’ in which individual components can respond to needs in real time to create desired outcomes,” said Tom Burns, director of STO. “The goal is to fight as a network to create a chain of effects—or, more accurately because these effects are not linear, ‘effects webs’—to deter and defeat adversaries across multiple scales of conflict intensity. This could be anything from conventional force-on-force battles to more nebulous ‘Gray Zone’ conflicts, which don’t reach the threshold of traditional military engagements but can be equally disruptive and subversive.”

U.S. military power has traditionally relied upon monolithic military systems where one type of aircraft, for example, is designed to provide a single end-to-end capability tailored to a very specific warfighting context—and be a significant loss if shot down. In contrast, the composable effects webs concept seeks a mosaic-like flexibility in designing effects for any threat scenario. By using less expensive systems brought together on demand as the conflict unfolds, these effects webs would enable diverse, agile applications—from a kinetic engagement in a remote desert setting, to multiple small strike teams operating in a bustling megacity, or an information operation to counter an adversary spreading false information in a population threatening friendly forces and strategic objectives. Mosiacs can rapidly be tailored to accommodate available resources, adapt to dynamic threats, and be resilient to losses and attrition.

This means that even if an adversary can neutralize a number of pieces of the mosaic, the collective can instantly respond as needed to still achieve the desired, overall effect.”…The mosaic strategy is also anticipated to change the way the military thinks about designing and buying future systems. Instead of spending years or even decades building exquisite, monolithic systems to rigid requirements, future acquisition programs would be able to buy mosaic “tiles” at a rapid, continuous pace. The true power of the new capabilities will come from the composite mosaic effects.

The approach will draw in part on a number of existing DARPA programs that are developing enabling technologies to achieve the challenging mosaic warfare architecture, including: The Complex Adaptive System Composition And Design Environment (CASCADE) program is addressing composition of existing and new systems; the System of Systems Integration Technology and Experimentation (SoSITE) program is focused on integrating the various systems to work together; Distributed Battle Management (DBM) and Resilient Synchronized Planning and Assessment for the Contested Environment (RSPACE) are addressing battle management command and control; and Communications in Contested Environments (C2E) and Dynamic Network Adaptation for Mission Optimization (DyNAMO) are focused on seamless, adaptable communications and networking.

Excerpts from Strategic Technology Office Outlines Vision for “Mosaic Warfare”, DARPA Press Release, Aug. 4, 2017

An Undersea Network for Emergencies: DARPA Tuna

DARPA’s Tactical Undersea Network Architecture (TUNA) program completed its initial phase, successfully developing concepts and technologies aimed at restoring connectivity for U.S. forces when traditional tactical networks are knocked offline or otherwise unavailable. The program now enters the next phase, which calls for the demonstration of a prototype of the system at sea.

TUNA seeks to develop and demonstrate novel, optical-fiber-based technology options and designs to temporarily restore radio frequency (RF) tactical data networks in a contested environment via an undersea optical fiber backbone. The concept involves deploying RF network node buoys—dropped from aircraft or ships, for example—that would be connected via thin underwater fiber-optic cables. The very-small-diameter fiber-optic cables being developed are designed to last 30 days in the rough ocean environment—long enough to provide essential connectivity until primary methods of communications are restored.

Supplying power to floating buoy nodes on the open sea presents a particular challenge. During the first phase of the program, the University of Washington’s Applied Physics Lab (APL) developed a unique concept called the Wave Energy Buoy that Self-deploys (WEBS), which generates electricity from wave movement. The WEBS system is designed to fit into a cylinder that could be deployed from a ship or aircraft.

Excerpt from Networks of the Sea Enter Next Stage, DARPA website, Jan. 5, 2017

The Militarization of the Deep Sea: DARPA Tuna


Tactical Undersea Network Architectures (TUNA). Solicitation Number: DARPA-BAA-14-32

Defense Advanced Research Projects Agency (DARPA)

DARPA is soliciting innovative research proposals in the area of undersea fiber optic-based communications networks. Proposed research should investigate innovative approaches that enable revolutionary advances in science, devices, or systems. Specifically excluded is research that primarily results in evolutionary improvements to the existing state of practice.

This solicitation seeks proposals for an initial fifteen month phase (Phase 1) of the Tactical Undersea Network Architectures (TUNA) program. Performers are sought for the following Technical Areas (TAs):

TA1. System designs
TA2. Small undersea fiber optic cables
TA3. Buoy node systems.

from Federal Business Opportunities https://www.fbo.gov/index?s=opportunity&mode=form&id=ace0dc74e3f5c7819d49ce2f8a9307de&tab=core&_cview=0, Apr. 17, 2014