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

Engineer inspects NASA's Nancy Grace Roman Space Telescope's primary mirror at the L3Harris facility in Rochester, New York. Credit: NASA

Editorial | 08. 24. 2026

L3Harris Technology Set to Help Unlock the Universe as NASA's Roman Space Telescope Nears Launch

In just one week, NASA's Nancy Grace Roman Space Telescope is scheduled to begin a mission that could reshape humanity's understanding of the universe.

Engineer inspects NASA's Nancy Grace Roman Space Telescope's primary mirror at the L3Harris facility in Rochester, New York. Credit: NASA

Editorial | 08. 24. 2026

L3Harris Technology Set to Help Unlock the Universe as NASA's Roman Space Telescope Nears Launch

L3Harris render of Viper Shield, a virtual electronic shield, around the soaring F-16 aircraft, thumbnail image

Press release | 08. 17. 2026

Peru Selects L3Harris Electronic Warfare System for F-16 Fleet

L3Harris and US Army collaborate at Project Convergence Capstone 6

Press release | 08. 18. 2026

L3Harris Demonstrates Multi-Domain Supremacy at Annual Project Convergence Exercise

Rhode Island facility opening

Press release | 08. 12. 2026

L3Harris Opens Rhode Island Production Facility to Support US and Allied Naval Readiness

L3Harris and US Army collaborate at Project Convergence Capstone 6

Editorial | 08. 05. 2026

A Collaborative Capstone: L3Harris at Project Convergence

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