Laser Weapons Are Here. Why Haven’t They Replaced Missiles?
High-energy laser weapons are moving from demonstrations toward real military use, but the movie image of a glowing bolt is a poor guide. The real story is an attractive bargain with conditions attached: electricity can make some interceptions far cheaper, while weather, heat, tracking and dwell time can change the math.
Light is fast; damage takes time
A laser must keep enough energy on a small, moving spot long enough to produce an effect, while the target, the platform and the air between them all move. The hard part is not producing a powerful beam in a laboratory. It is delivering a useful effect repeatedly in the field.
Iron Beam: delivered, and complementary
On 28 December 2025, Israel’s defense ministry announced delivery of the first Iron Beam system to the military, saying testing had included rockets, mortars and unmanned aircraft. Crucially, the ministry presented Iron Beam as a complementary layer alongside Iron Dome, David’s Sling and Arrow, not as a replacement. A handover ceremony is a milestone; it is not a public record of every operating limit.
DragonFire: ordered, not yet fielded
In November 2025 the UK government announced a £316 million contract for DragonFire, with Royal Navy deliveries planned from 2027, and reported tests against fast-moving drones. A contract is stronger evidence than a concept drawing, but a future delivery date is still a plan. And the low cost of a single shot is not the lifetime cost of the weapon: ships also need installation, power, cooling, maintenance and trained crews.
The U.S. moves toward actual use
In August 2026, a U.S. Army report described the use of its Multipurpose High Energy Laser against three drones near the southern border, which officials linked to cartel activity. That is evidence of use in a specific setting, not proof that the system can handle every aircraft or missile.
Why the atmosphere gets a vote
Fog, dust, smoke and turbulence all affect how energy reaches a target, and electrical power generates heat that must be removed. That matters in sea haze and desert dust alike. The likeliest future is not a laser on every vehicle but a layered arrangement in which lasers take suitable targets away from expensive interceptors, while missiles keep the jobs only they can do.
This report accompanies the video above from DefenseandTech, Defence Arabia’s English-language partner channel, part of the Defense Vision series. Research checked on 7 November 2026; the full source list and footage credits are in the video description on YouTube.
