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08/27/2025 | Press release | Distributed by Public on 08/27/2025 12:01

Divesting the Past to Secure Tomorrow’s Battlefield

Divesting the Past to Secure Tomorrow's Battlefield

Photo: greensky1/Adobe Stock

Commentary by Benjamin Fernandes and Benjamin Jensen

Published August 27, 2025

Secretary of Defense Pete Hegseth gave the Army a clear directive-design a leaner and more lethal force with better long-range precision fires, air and missile defenses, cyber capabilities, electronic warfare, and counter-space capabilities. These are expensive priorities requiring significant changes to the Army's force structure. The Army cancelled the M10 Booker and procurement of older attack helicopters (AH-64D Apache) but plans to develop a new manned tank; however, Army leaders should consider substantial divestment of manned attack aviation and manned tanks. Generals and soldiers, including the authors, love Apache attack helicopters and M1 Abrams tanks, which represent raw combat power and U.S. technological dominance of the twentieth century. However, today's anti-access/area denial (A2/AD) threats, proliferating advanced air defenses, and other threats in every domain demand rethinking the Army's force structure at every level. Winning modern combat requires lethal, relatively cheap, strategically agile (i.e., between continents), and tactically agile (i.e., on the battlefield) weapon systems that industry can quickly produce in large numbers. Agility becomes especially important in an unpredictable world where threats and the president determine where the Army operates, not the Army's desire or force structure. The next adversary could be cartels, China, or something else.

Abrams and Apaches Lack Strategic Mobility

While the Abrams tanks and Apache helicopters provide tremendous lethality on the battlefield, their slow movement between continents overly burdens the force with poor strategic mobility. A C-17 cargo aircraft can only carry one Abrams tank because it weighs more than 30 Ford F-150 trucks. Apache helicopters are easier to carry; three fit on a C-17, but loading and unloading remain relatively slow and cumbersome due to the disassembly and reassembly required. These physical requirements force the Army to rely on sealift, which easily requires 30 or more days to transport equipment to Europe, Asia, or the Middle East. Chinese, Russian, Iranian, and North Korean investment in cyber (e.g., Volt Typhoon), long-range fires (e.g., Oreshnik), and anti-ship capabilities (e.g., DF-21 anti-ship missile) could substantially lengthen this strategic transportation timeline and attrit forces in transit under wartime conditions. Compounding this problem are some tactical, intra-continental mobility concerns for the Abrams, such as its ability to cross most bridges due to its weight and massive logistics requirements-around a half-mile per gallon of fuel. Ultimately, adversaries could achieve a fait accompli or, more likely, substantial gains before a critical mass of Abrams or Apaches arrive on the battlefield.

Apache Helicopters Are Increasingly Vulnerable

Attack aviation provides flexible close air support in theaters under Army control, but modern surface-to-air missiles make Apaches vulnerable, and there is no easy fix because physics favors anti-air weapons over helicopters, which must defeat gravity and beat the air into submission. Investing millions to upgrade existing airframes will not fundamentally mitigate these vulnerabilities, and Apaches are one of the most expensive Army platforms to operate and maintain. Long-range artillery and missiles have the potential to provide more cost-effective fire support to combat units across a wider range of environmental conditions with far less vulnerability. Although they lack an Apache's tactical mobility, mobility only matters if the platform survives and is available.

Pivoting to Unmanned Ground Combat

Unmanned Ground Combat Vehicles can deliver Abrams-comparable firepower at less than half the weight and cost, as the Army Science Board working with the Ground Vehicle Systems Center demonstrated in 2016. A C-17 can carry a pair of robot tanks-each two-thirds the size and less than half the weight of an Abrams-improving intercontinental responsiveness and likely reducing the risk to human crews. Alternatively, cheap and expendable ultralight ground combat vehicles with missiles or small aerial drones can provide exponentially greater global mobility; however, their combat capabilities are less certain. Separately, aerial drones have the potential to be more effective than Apaches. Today, all robot systems require remote pilots to ensure effectiveness, which creates at least some vulnerability to electronic attack, as demonstrated in Ukraine and Africa. These problems are different, but potentially easier and less expensive to solve than the global mobility and cost problems created by manned tanks and attack helicopters. Appropriate training and experimentation, along with advances in automation and electronic warfare tactics, offer ways to ensure the effectiveness of robotic weapons-as Ukraine demonstrates.

C-17 Space Claim for C2 Vehicle

Benjamin Fernandes

Teaching Faculty, National War College and George Mason University
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Benjamin Jensen

Director, Futures Lab and Senior Fellow, Defense and Security Department

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Source: "Robotic and Autonomous Systems-of-Systems Architecture," Army Science Board Fiscal Year 2016 Study.

Robust Modeling and Analysis Are Essential

Transitioning to a radically different force design requires more large-scale, joint simulations that include movement from peace-time bases to the battlefield. To determine the value of new platforms and force designs in combat, analysis of these simulations must include cost-benefit analyses by platform. Additionally, the accuracy of these simulations depends on detailed logistics, operations, and maintenance data, which will only be available if the Army develops and tests experimental formations-mixing fires brigades, transport units, and robot/drone elements. These formations likely have unique logistics, operations, and maintenance requirements that require real-world experiments to discover.

The Army never fights alone, so the best simulations will incorporate joint and coalition forces throughout the conflict. A critical, and often overlooked factor, is the Navy, Air Force, and civilian sector's ability to transport Army forces early in a conflict; a critical evaluation factor for assessing any Army force design. Only by comparing metrics across the entire war fight can the Army effectively compare a new force design against current tank-centric brigades with Apache fire support. Importantly, this analysis should identify if different phases of a fight require different capabilities. One plausible outcome could be a need for attritable platforms early and larger, possibly reserve, platforms as follow-on reinforcements.

Examining Cross-Service Legacy Platforms

Although reforming the Army is important, other services also require substantial reform. This reform should be done to allow each service to own and fulfill missions where they have a comparative advantage over the other services. Although the military services tend to avoid depending on each other, the secretary of defense and the chairman of the joint chiefs of staff should force interdependence. The Army, Navy, and Marines no longer fight separately as they did during World War II, when the Marines were abandoned and forced to defend their position on Guadalcanal Island without air cover or naval support. The fix for this historical problem was joint Combatant Commanders, not duplication of close air support capabilities. Department of Defense-wide reform should create greater investments in platforms and formations that provide the most capability per dollar. Given today's threats and a business-oriented capability per dollar cost criteria, vertical take-off and landing planes (e.g., F-35B) and Navy carriers deserve scrutiny, along with tanks and attack aviation. Overall, evaluation based on return on investment (cost vs. impact on the war fight) will cause some services to win and others to lose, but the result will be a more effective and efficient U.S. military. In addition to lethality, measuring impact should include equipment size and weight (proxy for strategic agility), logistics demand, and production complexity-can U.S. industry rapidly ramp up production?

Conclusion: From Legacy to Agility and Lethality

Bold reform, not incremental upgrades, will ensure our forces remain agile, lethal, and ready to win the next war on our terms. Fast reform is ideal, but reform without appropriate analysis creates substantial risk. If the Secretary cannot wait, he should divest or at least avoid sinking significant funds into upgrading Apache and Abrams formations and fund more strategically mobile and cost-effective formations. The Army and the rest of the joint force have relied on twentieth-century formations for too long. Significant structural changes can make the U.S. Army more agile and lethal to help President Donald Trump achieve "peace through strength" in the twenty-first century and win anywhere the president needs military forces.

Colonel Benjamin Fernandes serves as teaching faculty at the National War College and George Mason University. The conclusions and opinions expressed are the author's own and do not reflect the opinions or official position of the U.S. government, Department of Defense, Department of the Army, or National War College. Benjamin Jensen is the director of the Futures Lab at the Center for Strategic and International Studies in Washington, D.C.

Commentary is produced by the Center for Strategic and International Studies (CSIS), a private, tax-exempt institution focusing on international public policy issues. Its research is nonpartisan and nonproprietary. CSIS does not take specific policy positions. Accordingly, all views, positions, and conclusions expressed in this publication should be understood to be solely those of the author(s).

© 2025 by the Center for Strategic and International Studies. All rights reserved.

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Americas, Cybersecurity, Defense Budget and Acquisition, Defense and Security, Missile Defense, Technology, and Ukraine War
CSIS - Center for Strategic and International Studies Inc. published this content on August 27, 2025, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on August 27, 2025 at 18:01 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]