American, Philippine, and Japanese forces spent four days proving they can shoot down the same drone together — and the exercise they ran at Naval Station Leovogildo Gantioqui in the Philippines from April 26 to 29 was as much about network architecture as it was about missiles.
The Integrated Air and Missile Defense training events, conducted as part of Exercise Balikatan 2026, brought together U.S. Marine Corps, U.S. Army, Japan Self-Defense Force, and Philippine military elements into a single, networked air defense system designed to detect and engage complex aerial threats across the littoral environment. The training integrated both kinetic and non-kinetic capabilities against simulated enemy aerial targets — a multilateral defensive exercise that put real hardware from four military organizations onto a shared tactical picture and tested whether they could actually work together under the pressures of a compressed, high-tempo air defense scenario.
The hardware inventory assembled for this exercise reflects the current state of allied air defense integration in the Pacific with unusual clarity. The U.S. Marine Corps brought the Marine Air Defense Integrated System — MADIS, a short-range counter-UAS and air defense platform — alongside the AN/TPS-80 Ground/Air Task-Oriented Radar, known as G/ATOR, which provides the surveillance and fire control data that feeds the broader air picture. The U.S. Army contributed the AN/TWQ-1 Avenger, a vehicle-mounted short-range air defense system, the Vehicle-Agnostic Modular Palletized ISR Rocket Equipment — VAMPIRE — and the Fixed Site-Low, Slow, Small UAS Integrated Defeat System, designated FS-LIDS. Japan’s contribution was the Type 11 surface-to-air missile system, known as Tan-SAM Kai II, providing short-range air defense capability alongside the American and Philippine assets. The Philippine Air Force operated the Surface-to-Air Python and Derby system — SPYDER — a modern medium-range air defense platform that gives the Philippines a genuine engagement capability against a range of aerial threats.
The presence of VAMPIRE in a littoral air defense exercise deserves particular attention. VAMPIRE — Vehicle-Agnostic Modular Palletized ISR Rocket Equipment — is a system that has gained attention primarily through its use in Ukraine, where it has been employed to engage drone threats with precision rocket munitions. Designed to be mounted on virtually any vehicle platform, VAMPIRE brings a precision counter-UAS strike capability that can be rapidly deployed to shorelines and remote positions that larger, heavier air defense systems cannot reach. U.S. Army Lt. Col. Kenneth Collins, commander of 1st Battalion, 51st Air Defense Artillery Regiment, made the operational logic explicit: “By bringing rapid, palletized capabilities like VAMPIRE to the shorelines, we provide a decisive, precision-strike capability against small UAS threats, filling a vital role in the air defense network.”
The network itself — connecting sensors and shooters across four military organizations operating different systems on different communications architectures — is where the real difficulty of combined air defense lies, and where Balikatan 2026’s IAMD training made its most significant statement. Col. Gabriel L. Diana, commanding officer of 3rd Marine Littoral Regiment, described what the exercise demonstrated: “The synchronization of our joint and combined air defense assets ensures we can maintain a persistent defensive umbrella, even in the most remote littoral environments. By networking Marine, Army, Philippine, and Japanese systems into a single, cohesive defensive network, we are proving that our allied and partner forces can rapidly deploy and protect vital terrain against any complex aerial threat.”
The Philippine Navy extended the integrated network beyond the shoreline and into the maritime domain. Frigates BRP Antonio Luna and BRP Miguel Malvar — FFG 15 and FFG 6 respectively — participated in the training through simulated air defense engagements, adding a naval layer to the air defense architecture that ground-based systems alone cannot provide. The inclusion of Philippine naval vessels reflects a recognition that littoral air defense in the Philippine archipelago is inherently a maritime problem as much as a land one — threats approaching from the sea require engagement capabilities that reach beyond the beach.
Philippine Marine Corps Col. Dennis Hernandez, spokesperson for Balikatan 2026’s AFP elements, articulated the integrated network’s value from the Philippine perspective: “Integrating the 960th Air and Missile Defense Wing, the 1st Air Defense Artillery, and our Navy ships alongside U.S. and Japanese units allows us to build a truly unified tactical picture. By sharing sensor data and coordinating our engagements across different platforms, we have proven that our multilateral air defense network is stronger, faster, and more resilient than ever before.”
The U.S. units participating included Marine Air Control Group 38, 3rd Littoral Anti-Air Battalion, and 12th LAAB from the Marine Corps, alongside Army elements from 1-51 and 6-52 ADA. The Philippine side engaged the 960th Air and Missile Defense Wing of the Philippine Air Force and the 1st Air Defense Artillery of the Philippine Army. Japan Self-Defense Force elements integrated their Type 11 system into the combined network, filling the short-range air defense tier alongside American and Philippine assets.
What Balikatan 2026’s IAMD training demonstrates is that the United States and its Pacific partners are not just talking about integrated air defense — they are practicing it, with real systems, real units, and real network integration challenges, in the actual geography where those defenses would need to function. The Philippine littoral environment, with its island geography, maritime approaches, and complex electromagnetic environment, is exactly the setting where air defense integration is hardest and most necessary.