Army’s Ivy Mass exposes weaknesses in contested-spectrum command and control

The Army’s Ivy Mass exercise showed that electronic attack does not have to be obvious to work. At Piñon Canyon Maneuver Site, the 4th Infantry Division and NGC2 teams ran division-scale command and control through combined jamming, space, GPS and cyber pressure while soldiers initially treated failures as routine network faults.

The result was a sharper lesson than outright blackout: partial degradation created doubt, slowed the blue force response and exposed gaps in both equipment and tactics. Commanders also pushed dispersion hard, leaving the force uncomfortably dispersed to reduce detectability while preserving comms. The next test comes at Project Convergence in July.