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™ C-UAS Precision Strike & ISR Weapons System

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

Submarine slices through water surface under a blue sky

Editorial | 10. 22. 2026

Powering America's Most Advanced Submarines

For the U.S. Navy's most advanced submarines operating beneath every ocean, there is a power system on board that makes every mission possible. That system bears the L3Harris name.

Submarine slices through water surface under a blue sky

Editorial | 10. 22. 2026

Powering America's Most Advanced Submarines

: L3Harris advances airborne electronic warfare with enhanced jamming capabilities.

Press release | 10. 19. 2026

L3Harris Advances US Navy Next Generation Jammer Low Band Program with $876 Million Award

AUKUS Undersea Warfare Capabilities at RIMPAC 2026

Editorial | 10. 19. 2026

L3Harris’ “Rock Lobster” Acoustic Communications System Advances AUKUS Undersea Warfare Capabilities at RIMPAC 2026

F-35 takes off from tarmac at sunrise

Editorial | 10. 19. 2026

L3Harris Achieves 1,000th Shipset Milestone for Major Elements of F-35 TR3 Program

Skydio autonomous drone

Editorial | 10. 15. 2026

L3Harris, Skydio Partner to Advance Connected Battlefield Capabilities

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