Europe's counter-drone spending is outpacing its doctrine

European governments have committed more than €4bn to counter-drone programmes in eighteen months, driven by a pattern of unattributed incursions over airbases, ports and energy infrastructure. Contracts are being signed faster than at any point in the sector's history — and faster, critics argue, than the legal frameworks governing their use can keep up.

A layered market takes shape

The procurement wave is consolidating around layered architectures: passive RF detection, radar and electro-optical tracking, electronic-warfare effectors and, at the hard end, kinetic interceptors. Sentinel Aerosystems' AegisNet selection for a multi-country airbase protection programme is the largest single award to date, covering fourteen installations.

But interviews with programme officials in four countries reveal persistent uncertainty over rules of engagement at civilian-adjacent sites. In most jurisdictions, the legal authority to jam or destroy a drone near an airport sits with different agencies than those operating the sensors — and in some, with no agency clearly at all.

The autonomy question

The next generation of systems compresses the detection-to-effect timeline below human reaction speeds, forcing uncomfortable questions about pre-authorised autonomous engagement. NATO's emerging counter-UAS doctrine, expected in draft this autumn, will be the first attempt to standardise where a human must sit in that loop. Until it lands, Europe is buying hardware first and writing the rulebook second.