Modern Day Marine (MDM)

Modern Day Marine 2021

Washington, D.C., U.S.A. — Walter E. Washington Convention Center

April 28, 2026 - April 30, 2026

Modern Day Marine is the premier military equipment, systems, services and technology exposition. View the latest Marine-relevant products and solutions, as well as attend service level presentations on future operating concepts, requirements, experimentation and acquisitions objectives, and implications of the emerging operational environment.

Featured Capabilities

VAMPIRE live fire demonstration

VAMPIRE™

DiSCO™ concept image thumbnail

Distributed Spectrum Collaboration and Operations (DiSCO™)

M3 Capabilities: Aircraft Modernization, Missionization and Maintenance, Repair and Overhaul

M3 Capabilities

Next Generation Jammer – Low Band (NGJ-LB) on the EA-18G Growler

Next Generation Jammer – Low Band (NGJ-LB)

L3Harris resilient comms solutions

Resilient Communications and Networks

Electronic Warfare Solutions

Electronic Warfare

L3Harris' Iver underwater autonomous vehicle

Iver Suite of Autonomous Underwater Vehicles

News

Niagara Frontier Transportation Authority Metro Rail train

Editorial | 06. 24. 2026

L3Harris is Selected to Upgrade Niagara Frontier Transportation Authority’s Critical Communications Network

L3Harris Technologies has received a contract to upgrade Niagara Frontier Transportation Authority’s critical communications infrastructure

Niagara Frontier Transportation Authority Metro Rail train

Editorial | 06. 24. 2026

L3Harris is Selected to Upgrade Niagara Frontier Transportation Authority’s Critical Communications Network

Soldiers walk in forest

Press release | 06. 24. 2026

L3Harris to Provide Communication Systems to Support German Forces

The Mobile User Objective System (MUOS)

Editorial | 06. 22. 2026

L3Harris’ NSA-Certified Crypto Keeps MUOS Battle-Ready for the Long Haul

Airborne Imaging with WESCAM MX Series EO/IR Systems capturing Artemis II launch

Editorial | 06. 22. 2026

Capturing Artemis II: Airborne Imaging with WESCAM MX-Series EO/IR Systems

Aircraft in hangar

Press release | 06. 19. 2026

L3Harris Delivers VC-25B Aircraft to US Air Force

Visit the Newsroom

The appearance of U.S. Department of War visual information does not imply or constitute DOW endorsement.