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August 5, 2019 | International, Aerospace

Hypersonic threats need an offense-defense mix

By: Melanie Marlowe

Next week, people from across the missile defense community will gather at an annual symposium in Huntsville, Alabama, to consider how to adapt U.S. missile defense efforts to the challenge of renewed competition with Russia and China. A centerpiece of their discussions will be the emergence of advanced hypersonic missile threats and what to do about them.

Over the past few years, the Pentagon has prioritized the development of offensive hypersonic strike weapons, with billions of dollars in contracts already awarded for each of the major military services to acquire hypersonic strike missiles of their own.

The counter-hypersonic mission, however, received surprisingly short shrift in recent defense budgets, with progress on hypersonic defense thus far piecemeal and halting. Some leading military officials charged with procuring hypersonic strike missiles have said that defending against hypersonic missiles is too hard, so we shouldn't even try.

That short-sighted approach is at odds with the vision of newly confirmed Secretary of Defense Mark Esper, who stated to Congress that he will advocate hypersonic missile defense, to include the development of new sensors, interceptors, and advanced command-and-control systems.

Public commentary on hypersonic threats has been somewhat hyperbolic. Yes, hypersonics are fast — five or more times the speed of sound — but that's slower than many ballistic missiles. Aerodynamic maneuver makes for a less predictable flight path, but this also means that atmospheric friction would remove the kind of decoys that might accompany a ballistic reentry vehicle. Whether a boosted glide vehicle, a scramjet cruise missile or a maneuverable quasi-ballistic missile, hypersonics pose a complex air defense challenge, but they are not invulnerable.

The strategic significance of hypersonics is nevertheless quite real. Today's Patriot, Terminal High Altitude Area Defense and Aegis defenses protect American carrier groups and ground forces against aerial and ballistic missile attack. Designed to go around or under those defenses, hypersonics are a more sophisticated means to hold forces at risk, and thereby undermine our broader defense goals and alliance system. Even if the United States catches up with the Chinese and Russians on hypersonic strike, our adversaries' ability to hold U.S. carriers and forward bases at risk will push back U.S. forces. They could certainly also be used to target the American homeland, but the more urgent threat is regional. Passive defense only goes so far — ships can only go so fast, and air bases cannot be moved. Active defenses must be part of a balanced strategy.

The first priority here is a space sensor layer. Unlike ballistic missiles, hypersonic missiles fly at lower and changing altitudes, are harder to see, and travel an uncertain flight path. Current early warning satellites can detect the launch of boost-glide vehicles but are unsuited to tracking them during the glide phase. Today's surface-based ballistic missile radars would only be able to spot a weapon once it crosses the horizon. Only space sensors can provide birth-to-death, fire-control quality tracks for hypersonic missiles.

Unfortunately, recent budget requests have been rather tepid in their commitment to space sensors. The administration's 2020 request virtually divested the program, and for the second year in a row the Missile Defense Agency listed the space sensor layer as its No. 1 unfunded priority. Thankfully, Congress seems to be in the process of restoring $108 million to return the program to the MDA to move out on development this year.

The second element of hypersonic defense is interceptors. Although existing interceptors may well be improved, Secretary Esper has affirmed that new interceptors will have to be developed that are better suited to the mission's stressing thermal and high-maneuver environment. The MDA's third-highest unfunded priority for 2020 — $720 million for hypersonic defense — seems unlikely to be restored this year, but should be restored in the 2021 budget. Directed-energy weapons could potentially target hypersonic threats in their cruise phase or jam them in their terminal phase, but the mission's complexity will almost certainly require both kinetic and nonkinetic effectors.

The most challenging element will be developing a command-and-control architecture that ties everything together. A long-range hypersonic glide vehicle of significant range could cross continents and multiple combatant commands. Even with better interceptors and an adequate sensor layer, information and fire-control solutions must be developed and rapidly passed to commanders. The Command and Control, Battle Management, and Communications network that supports the Ballistic Missile Defense System may be the foundation of such an architecture, but more dramatic upgrades will be required.

The advent of the hypersonic era is central to the efforts by Russia and China to counter U.S. power projection in the world. The Pentagon's recent focus on hypersonic strike is necessary but insufficient. It falls now to congressional leadership and those assembling the 2021 budget to rebalance it with a more appropriate mix of hypersonic strike and defense.

https://www.defensenews.com/opinion/commentary/2019/08/02/hypersonic-threats-need-an-offense-defense-mix/

On the same subject

  • With shutdown over, Japan cleared to spend $2.15 billion on Aegis Ashore

    January 30, 2019 | International, Land

    With shutdown over, Japan cleared to spend $2.15 billion on Aegis Ashore

    By: Aaron Mehta WASHINGTON — The U.S. Defense Security Cooperation Agency announced Tuesday that Japan has been cleared to buy a pair of land-based Aegis ballistic missile defense systems, the first Foreign Military Sales announcement since the end of a government shutdown that stalled the FMS process. The sale, worth an estimated $2.15 billion, would bolster Japan's existing sea-based Aegis capabilities. The island nation is in the process of increasing its missile defense capabilities, both through additional Aegis buys and through the co-development of the SM-3 missile with the U.S. Although not specified in the DSCA announcement, a government official confirmed these two systems are for Japan's planned Aegis Ashore sites, which are expected to be operational by 2023. Included in the potential package: two Aegis weapon systems, two multimission signal processors, and two command-and-control processor refreshes, alongside radio navigation equipment, ordnance, identification friend or foe systems, and construction services for six vertical launch system launcher module enclosures. Tuesday's announcement is the first DSCA notification to be posted since Dec. 18, just days before the longest government shutdown in U.S. history began. Speaking to reporters last week, Andrea Thompson, the U.S. State Department official who oversees the FMS process, said the shutdown was slowing down the process of clearing sales requests from foreign customers — notable, as the Trump administration has made increasing weapon sales abroad a key part of both its foreign policy and economic growth strategy. “There will be a bit of a bump — a gap, if you will — just because we haven't had the engagement with [Capitol] Hill” normally seen in the process, Thompson said then. “We'll be able to make up some ground, but I am a realist. We have to work harder if we are going to have the numbers we had last year.” Japan has recently spent heavily on American defense items. In September, the nation was cleared to spend $3.14 billion on nine E2-D Advanced Hawkeye aircraft, and in October it agreed to pay more than half a billion dollars for SM-3 missiles. In the recently released Missile Defense Review, the U.S. Department of Defense identified that working with partners in the Pacific — notably Japan and South Korea — is the “cornerstone” of American security in the region. “Japan is one of our strongest missile defense partners, and works together with the United States to strengthen cooperative missile defenses against regional missile threats,” the review states. “Going forward, DoD will work with allies and partners to prioritize these types of missile defense integration opportunities that contribute to more effective protection of the United States, its allies and deployed forces.” DSCA announcements do not mean sales are final. The announcement serves as notification to Congress about the potential sale, which can be vetoed by the Senate; once cleared, negotiations between the customer and contractor can lead to changed quantities or dollar figures from the original announcement. https://www.defensenews.com/global/asia-pacific/2019/01/29/with-shutdown-over-japan-cleared-to-spend-215-billion-on-aegis-ashore

  • US Marines to test drone-killing laser weapon

    June 20, 2019 | International, Land

    US Marines to test drone-killing laser weapon

    By: Cal Pringle WASHINGTON — The U.S. Marine Corps is testing a prototype laser weapon that could be used by war fighters on the ground to counter enemy drones, according to a Wednesday news release. The prototype Compact Laser Weapons System — or CLaWS — is the first ground-based laser approved by the Defense Department for use by ground troops, the Marine Corps explained. The program is on a rapid prototyping, rapid delivery track, the service said. “This project, from start to finish — from when we awarded the DOTC [Defense Ordnance Technology Consortium] contract, to getting all the integration complete, all the testing complete, getting the Marines trained, and getting the systems ready to deploy — took about one year,” said Lt. Col. Ho Lee, product manager for ground-based air defense future weapons systems at Program Executive Office Land Systems. The Defense Department believes lasers are a more affordable alternative to traditional firepower and that they prevent drones from tracking and targeting Marines on the ground. The release notes the laser is not a standalone weapon, but is meant to serve as part of a larger counter-drone system. If the prototype is successful, it could be incorporated into fixed-site and mobile capabilities designed to counter unmanned aircraft, the Marine Corps said. The Army and Navy are also exploring the possibilities of laser technology. https://www.defensenews.com/industry/techwatch/2019/06/19/us-marines-to-test-drone-killing-laser-weapon/

  • What Tactical Unmanned Aerial Assets Need in Today’s Battlefields

    June 5, 2020 | International, Aerospace

    What Tactical Unmanned Aerial Assets Need in Today’s Battlefields

    As a former Special Operations Forces Combat Controller, I've been a part of, and have seen, the revolution of Battlefield Air Operations. The use of tactical unmanned aircraft systems (UAS), for example, has evolved dramatically since their first deployment on the battlefield nearly 20 years ago – from single mission tools to highly sophisticated, multi-mission capable aircraft that now provide actionable intelligence and the persistent situational awareness needed in today's dynamic operating environments. Rapidly deployable via hand or bungee launch, with flexible payload options and rated for all-environment operation, Group 1 UAS, such as AeroVironment's Puma all environment system, provide land or maritime operators with actionable intelligence, surveillance and reconnaissance (ISR) in day, night, and low light conditions in even the harshest of environments. When combined with man-portable tactical missile systems, such as AeroVironment's Switchblade, these aerial assets provide platoons with advanced sensor-to-shooter capabilities, increasing force projection and soldier lethality for engaging beyond-line-of-sight enemy targets. Unmanned Aircraft Systems and Mission Success Today, forces operating without organic tactical UAS assets can become pinned-down by enemy fire for a lengthy period. They must radio for manned attack aircraft or Group 3 or 4 UAS to provide Close Air Support or risk sending additional troops directly into the line of fire. In many cases, these larger aerial assets may not be available in time to make a difference for the forces under fire due to distance, scarcity, or enemy air defense systems. However, with small tactical UAS and tactical missile systems packed in their rucksacks, troops can immediately secure persistent eyes-in-the-sky intel that can directly impact mission success and mean the difference between life and death. Using my first-hand experience, let's take a look at two potential operation scenarios that might occur in an Area of Responsibility (AOR) such as Africa: one focused on a mission with only a tactical UAS, and another that combines the technology of a tactical UAS and a tactical missile system, providing the platoon with the immediate precision munitions advantage it needs, straight from a rucksack. Mission With Only Tactical UAS In the first scenario, a combined force of US Marines comprising elements from the 2nd Marine Division, 6th Marine Regiment, and USSOCOM MARSOC are conducting offensive and stability operations from Camp Simba, near Manda Bay, Kenya, due to the increased threat posed by al-Shabaab. This robust tenant force has secured the local area and coordinates jointly with Kenyan military partners to ensure clear lines of communication, guaranteeing a secure environment for US and allied forces to conduct cross border reconnaissance and expeditionary operations into neighboring countries. Fifty miles to the northeast of Camp Simba, a platoon of Marines has established a forward Mission Support Site (MSS) to conduct border surveillance operations. Postured just outside Ras Kamboni, a small town on Somalia's coast, the platoon is equipped with two AeroVironment Puma 3 AE and one Puma LE (long endurance) UAS, along with their common ground control stations (GCS), air vehicle batteries and chargers, Mantis i45 EO/IR gimbaled sensors, and a spare parts kit. The Puma LE, which flies for 5.5 hours before needing a quick battery swap-out and has a range of 60 km when used with AeroVironment's Long-Range Tracking Antenna, was received by the unit only days before deployment. Because of the qualified Line Replaceable Unit (LRU) component interoperability, standard training, and parts commonality with Puma 3 AE (2.5 hours endurance), the regiment was confident there would be no issue integrating the Puma LE into their operations, and operate both Puma systems concurrently. Bringing both systems into the field provides the field commander with the option to take multiple Puma systems downrange, select the appropriate aircraft based on the type of flight operation to be performed, and then simply swap-in needed LRU components to execute the mission successfully. Launching from the Marine's MSS, its UAS flight operators conduct 24-hour surveillance using Puma LE across miles of the border and several Named Areas of Interest (NAI) that include border crossing points, known enemy staging areas, and likely routes of ingress. In addition to the Mantis i45 EO/IR sensor suite, the platoon was provided with a developmental signals intelligence (SIGINT) sensor designed to fit into the secondary payload bay of the Puma LE, and connected via its built-in power supply and Ethernet interface. As the UAS operator collects high resolution, full-motion aerial intel of the border, mission operators monitor the aircraft location in real-time via its AES-256 encrypted digital link, utilizing advanced mapping software and conducting signals analysis in the direction of Somalia. Due to its proximity onboard the Puma LE, the SIGINT package intercepts short-range, low power handset communications, which can then be translated with a combination of speech recognition algorithms and interpreters. With the ability to control the aircraft's sensor payloads independently, the Puma LE operator is immediately able to slew the i45 sensor to the discovered coordinates to verify the radio emitter locations and establish intent. Late in the evening, while conducting Puma LE ISR & SIGINT flight operations, mission operators intercept a flurry of handset activity and identify massing of military age males well within the Somali border. Marines at the MSS base are raised to full alert status while a ground assault quick reaction force (QRF) departs Camp Simba in the event of a cross border attack on the MSS. As the Puma LE UAS team continues visual and SIGINT surveillance, they observe several multi-vehicle convoys departing staging areas and heading toward the Kenyan border. Due to the continuous coverage provided by Puma LE, US forces ascertain an attack is imminent, establishing the enemy's intent. With the QRF linked-up to secure the MSS, the Puma LE operator continues to monitor convoy progress, which had stopped short of the border due to the arrival of additional US forces. On link-up, the Joint Terminal Attack Controller (JTAC) attached to the QRF utilizes coordinates derived from the Puma LE to nominate the convoys as enemy targets. As a result, US commanders scramble nearby fighter aircraft and approve them to strike validated enemy targets with no harm done to the civilian populace. Mission Combining Tactical UAS Technology and Tactical Missile System In the second scenario, the following day, two squads of MARSOC operators are patrolling the border in the vicinity of Kolbio, a small town 100 miles north of Camp Simba, in non-standard commercial vehicles to reduce their signature. Tasked with conducting area familiarization and sensor emplacement, the team has man-portable crew-served weapons, but limited mounted heavy weapons. Equipped with a single Puma LE and GCS, plus four AeroVironment Switchblade tactical missile systems, the team leader elects to keep the Puma LE airborne while in transit, providing real-time route surveillance and overwatch. As they travel parallel to the border, the Puma LE operator observes numerous all-terrain troop transport vehicles on a course to intercept the US convoy. The team leader advises the operations center that a troops-in-contact situation is imminent, and selects a defensible fighting position as one of the enemy convoys attempts to flank the American vehicles. With the Puma LE orbiting above the US position, the team leader has complete situational awareness as enemy fighters dismount and move to make contact. Enemy fighters attack from two quadrants, trading small arms and RPG fire, and although the enemy has superior numbers, the Marines hold the line. With no Close Air Support available and heliborne QRF at least 30 minutes away, the team begins to receive accurate mortar fire that disables two of the four American vehicles and injures several personnel. The team leader directs the Puma LE operator to locate the mortar, and orders the Switchblade operator to prep its ground tube-launch system. By using the Puma LE Mantis i45 electro-optical (EO) sensor center field of view coordinates, the operator identifies and locates the mortar approximately 1,500 meters northeast of their position. The Switchblade operator then launches the tactical missile system and instantly transfers target coordinates via machine-to-machine, sensor-to-shooter communication, eliminating the potential for data entry error. After its launch, the Switchblade autonomously navigates to the designated mortar position. As the Switchblade tactical missile closes on the target, the team leader visually compares full-motion video from both assets to ensure 100 percent positive identification of the target and then views Puma LE video to perform the resulting battle damage assessment. With the mortar and crew successfully eliminated, remaining enemy personnel retreat, allowing US forces to treat wounded personnel, and fortify defensive positions against potential future incursions. As described, these scenarios showcase the actionable intelligence, force protection, and increased soldier lethality that advanced UAS and teamed UAS/tactical missile systems can provide across today's complex battlefronts. Man-portable, rapidly deployable, interoperable, and with multi-mission capabilities, these battle-proven UAS provide ground commanders with the option of selecting the appropriate aircraft based on the type of mission when time is of the essence and in the most rugged environments. This increased capability provides immediate ISR and overmatches force protection responsiveness to front line tactical units and security personnel. https://www.thedefensepost.com/2020/06/04/what-tactical-unmanned-aerial-assets-need-in-todays-battlefields/

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