The U.S. Army’s latest missile test matters well beyond artillery modernization. A weapon launched from a truck on land is now moving closer to a mission once associated far more with ships, aircraft, and expensive cruise missiles: hunting warships that do not stay still. Lockheed Martin’s March 2026 flight test of the Precision Strike Missile Increment 2 showed why the Army has put so much weight behind the PrSM program. Fired from a HIMARS launcher, the missile completed a 350-km flight while demonstrating a new multi-mode seeker built to track moving targets. That seeker is the real story. The baseline PrSM already extended the Army’s reach beyond ATACMS, but Increment 2 pushes the system into a different category by adding the ability to engage relocating land targets and maritime threats. In practical terms, that means a launcher designed for rapid displacement can now contribute to sea denial from shore, without requiring a dedicated naval firing platform.
The Army has been heading in this direction for years. Its Multi-Domain Task Force concept centers on land-based precision fires that can influence air and sea space as well as the ground fight, with Congress describing the MDTF as the Army’s “organizational centerpiece” for multi-domain operations. In the Indo-Pacific especially, where vast distances and maritime chokepoints define the map, land-based missiles with ship-hunting ability fit a broader effort to place survivable firepower on dispersed terrain rather than concentrating it on a few high-value platforms.
That strategic shift is already visible. The current PrSM has now been used in combat, and operational reporting indicates HIMARS units have fired PrSM and ATACMS during Operation Epic Fury. That does not automatically mean every missile in use can chase a ship underway, but it does show the Army is no longer treating long-range ballistic fires as a purely land-attack tool. A major reason this stands out is speed: ballistic missiles compress defensive reaction time, complicate interception, and can hit hard in terminal flight. Against a defended vessel or a fleeting target set, those characteristics change the engagement problem.
Increment 2 also preserves one of PrSM’s biggest advantages: it does not demand an all-new launcher ecosystem. The upgraded missile remains compatible with HIMARS and the M270A2, allowing the Army to expand capability without replacing the launchers already woven into U.S. and allied force structures. Lockheed says the missile can “strike relocating or fleeting targets in both land and maritime environments,” and additional flight tests are scheduled for later in 2026 as the program moves through technology maturation. Defense reporting has also indicated Army planners hope to begin acquiring initial Increment 2 seekers this year.
The result is a quieter but important doctrinal change. Instead of relying only on naval or air power for maritime strike, the Army is building a land-based option that can be moved fast, hidden more easily, and fired from positions that complicate an opponent’s planning. The PrSM test did not just validate a missile. It showed how the line between artillery and sea control is getting harder to see.
