Increased drone incursions near NATO borders significantly raise the risk of military escalation with Russia

What's this about?

People disagree about whether more drone trips near NATO borders make a war with Russia more likely.

These events can make one crisis more risky, but they do not yet prove a wider war risk rose.

What supporters say

• Leaders may not know if a drone got lost, came from Ukraine, spied, or meant to send a threat.
• This lack of clear facts can force fast choices and cause each side to read the other side wrong.
• Repeated drone trips can test NATO radar, rules, team unity, and how fast its forces can act.
• If NATO jets stop or shoot a drone, debris, harm, and blame can quickly raise the stress.

What critics say

• A drone near a border does not always mean Russia plans to attack NATO.
• Some drones may cross borders by mistake or because fighting in Ukraine spills over.
• NATO states can track drones, add guards, and talk with allies before they take bigger steps.
• The number of drone events alone does not show that a NATO-Russia war has become much more likely.

The bottom line

Drone trips near NATO land probably make each event more dangerous, mainly because people may guess wrong.

But we do not yet have proof that more such events have raised the total risk of war.

More drone incursions near NATO territory probably make individual crises more dangerous, especially when their origin or purpose is unclear. But the available evidence does not show that a higher number of such incidents, by itself, has significantly raised the overall chance of war between NATO and Russia.

The case for

The central danger is miscalculation. When a drone crosses or approaches NATO airspace, officials may not know whether it is a navigational mistake, spillover from fighting in Ukraine, a reconnaissance mission, coercive signaling, or the start of a deliberate attack. That uncertainty can force leaders to make fast decisions and can cause defensive actions to be misunderstood by the other side. NATO, the United Nations, RAND and broader research on Russian-NATO air encounters have all identified such confusion as a route to wider crisis escalation. 1

Repeated incursions can also build political and military pressure over time. They test radar coverage, rules for responding, the unity of NATO allies and their readiness to act, while staying below the threshold of conventional war. Analysts of so-called gray-zone tactics say this kind of probing can gradually raise the stakes even if no single event requires a direct military response. Russian missile and drone activity close to Ukraine’s borders provides the setting in which accidental spillover and deliberate pressure can become more serious (see Figure 1). 2

The risk becomes more immediate when NATO members decide a drone must be intercepted or shot down. A defensive operation can lead to casualties, falling debris, cross-border effects and competing accusations of responsibility. Incidents involving Poland and Romania have moved beyond simple detection to fighter deployments, shoot-downs, consultations and added defensive measures. That does not amount to direct war, but it shows how a drone event can quickly become an alliance-level security issue. 3

Such episodes can also trigger NATO politics. They can prompt allies to consult, reinforce vulnerable areas and invest in counter-drone defenses. The demand for stronger defenses on NATO’s eastern flank suggests governments see the threat as persistent and consequential, rather than a series of isolated accidents (see Figure 2). 4

The case against

The strongest counterargument is that frequent military air encounters have often been contained. NATO reported more than 300 interceptions of Russian military aircraft in 2023, describing most as routine and professional. Reporting indicated that the overall level of such activity remained broadly stable in 2024 (see Figure 3). The record shows that a large number of aerial encounters does not automatically mean a rising number of dangerous incidents or a higher likelihood of NATO-Russia war. 5

NATO also has systems intended to stop a local incident from turning into a larger conflict. Air-policing missions allow allies to detect, identify and intercept aircraft or drones while coordinating their response. Article 4 provides a route for consultation among allies before any decision on collective action. These procedures create space between an airspace violation and a possible military escalation. 6

Most importantly, an incursion is not automatically an armed attack under NATO rules. States have a range of possible responses: interception, investigation, diplomacy, consultation and limited defensive action. Article 5 collective-defense measures—and still less a wider war—are not an automatic result of an unauthorized entry into airspace. 7

The cases in Poland and Romania illustrate both sides of the argument. They involved political pressure and, in some cases, kinetic defensive action. Yet the reported outcomes were consultations and protective measures, not direct combat between NATO and Russia.

The bottom line

Increased drone incursions probably raise the conditional risk of a dangerous mistake or unstable crisis. They can create confusion over intent, increase pressure on NATO governments and make armed defensive responses more likely.

But the evidence does not establish that more incursions significantly increase the overall probability of a NATO-Russia war. The impact depends less on the number of incidents than on their details: whether the object is a lost civilian drone, a stray weapon, an intelligence platform or a deliberate armed incursion; whether its origin and intent can be established; whether lives are endangered; and how the affected state responds.

Confidence in this qualified conclusion is high. The evidence consistently supports both the risks of miscalculation and the value of NATO’s containment procedures. The biggest remaining uncertainty is attribution: public reporting often cannot establish a drone’s origin, mission or connection to a wider Russian strategy well enough to calculate how much any increase in incidents changes the chance of war.