The hidden economics of directed energy: Why speed of light is not a silver bullet

The move toward directed energy weapons, such as lasers and high-powered microwaves, is often described as a shift toward infinite ammunition. However, this transition reveals a difficult reality: the U.S. military is currently built for high-end conflict while being drained by low-cost, asymmetrical threats. This situation highlights the tension between expensive systems designed for major warfare and the practical realities of logistics, environment, and supply chains. For defense analysts and industry observers, the advantage lies in managing a layered architecture where immediate operational needs drive innovation. Understanding this transition is necessary for anyone tracking the defense industrial base, as the winners will be those who solve the gap between costly interceptors and ineffective, static laser systems.

The exquisite trap and the cost of defense

The U.S. military relies on exquisite munitions, such as the PAC-3 interceptor. While these are necessary for hypersonic threats, they create a massive economic imbalance when used against cheap, mass-produced drones. Colonel Wayne Sanders points out that this miscalculation leaves the U.S. vulnerable to being run out of munitions by adversaries using inexpensive assets.

"You can win every engagement defensively and still lose economically. And that is what we are seeing a lot in Iran right now is they are just starting to run us out of some of these exquisite interceptors, munitions."

-- Wayne Sanders

The immediate benefit of a laser or microwave system is the deep magazine, which allows for repeated firing without depleting a finite stock of missiles. But this creates a logistical anchor. If a laser requires massive shore power or static infrastructure, it cannot move with the force. The system trades the flexibility of a mobile missile for the economic efficiency of a fixed-site energy beam.

The physics of the middle ground

Directed energy is not a single solution. Sanders distinguishes between lasers, which act as a sniper rifle for single targets, and high-powered microwaves, which function as an electronic shotgun for drone swarms. The challenge is that these systems are constrained by SWAP, or size, weight, and power.

Conventional wisdom suggests we are near the era of laser guns, but the reality involves ongoing engineering hurdles. To move from current 50-kilowatt platforms to the 1-megawatt systems needed to stop hypersonic weapons, the military must solve power generation without tethering the system to a static grid.

"The reason why it is still existing really striker vehicles right now have there are a couple of platforms that are out there specifically for this with a high energy laser on there. But you are talking about 50 kilowatts of power... if you only have a five kilowatt laser beam at that point in time, but it requires 15 or 25 kilowatts of energy in that beam to be able to knock a drone down then at that point in time, it is not going to be effective."

-- Wayne Sanders

This creates a feedback loop. Because the technology is still maturing, the military must maintain legacy systems while funding middle-ground solutions like the Coyote or Vampire systems. This dual-investment strategy is the only way to avoid a collapse of defense capacity during the transition.

The supply chain bottleneck

The push for directed energy exposes a hidden dependency on critical minerals like terbium, dysprosium, and neodymium. While the military focuses on weapon performance, the system's viability is gated by a supply chain dominated by China.

Systems thinking is critical here: a weapon system is only as good as its supply chain. The shift toward domestic onshoring, such as Department of Defense deals with companies like MP Materials, is a defensive necessity. The next generation of warfare will be won by those who secure the raw materials for the brushless motors and magnets inside these weapons, not just those who design the most sophisticated beam-steering algorithms.

Key action items

• Monitor multi-year procurement trends: Watch for the transition from R&D funding to multi-year framework agreements. This signals which technologies are moving from theoretical to procurement-ready. (Next 12 to 18 months)
• Audit dual-use supply chains: Track the availability of critical minerals like terbium and dysprosium. Because these are dual-use, commercial market demand will directly impact the ability to scale military production. (Ongoing)
• Assess middle-market disruptors: Look at the five companies currently under DOD contract for mid-range solutions, including Epirus, Leidos, Anduril, Zone 5, and Castilian. These firms are positioned to capture the market that traditional primes are ignoring. (Next 3 to 5 years)
• Evaluate human-in-the-loop AI integration: Focus on AI applications for imagery normalization and threat flagging. Avoid companies promising autonomous target execution, as the military is prioritizing human-authorized strike decisions. (Next 12 to 24 months)
• Prioritize layered architecture: Investors and analysts should favor platforms that offer options rather than silver bullets. The most resilient systems integrate with existing air defense, such as the Iron Dome or Iron Beam model, rather than attempting to replace them entirely. (Long-term investment horizon)