Russian Drones Are Testing NATO's Southeastern Border
Romania has recorded at least 23 violations of its airspace by Russian drones this year, more than the 18 incidents reported from 2022 through the end of 2025 combined. Four drones have been shot down, and fragments have been found on Romanian territory 27 times.
The numbers place a NATO member — and roughly 1,000 US troops stationed there — close to the physical spillover of Russia's war in Ukraine.
Romanian officials say there is not enough evidence to conclude that Russia deliberately targeted sites inside the country. The incursions appear connected to the growing scale of Russian attacks on Ukrainian ports and infrastructure near the Danube River and Black Sea coast. Intent, however, does not remove the danger.
Why Romania is exposed
The Danube forms part of Romania's border with Ukraine. Ports along the river are important routes for Ukrainian trade, making them repeated targets during the war.
Russia has attacked locations close to the Romanian frontier 54 times this year, compared with 28 such attacks in all of 2025. Drones navigating toward those targets can cross the border because of route planning, technical failure, electronic warfare or mistakes under combat conditions.
In May, an explosive-carrying Russian drone crashed in the Romanian city of Galati, injuring two people and setting fire to an apartment building. That incident made the risk to border communities impossible to treat as a purely technical airspace violation.
NATO's response is becoming more active
Romanian F-16s conducted the country's first drone interception in July, followed by two more over the next two days. A Spanish F-18 operating as part of allied defenses later destroyed another Russian drone near the Moldovan border.
NATO aircraft have flown at least 42 air-policing missions in Romania this year — more than the combined total for every year since 2022. Each mission requires pilots, fuel, maintenance, surveillance and a decision about whether firing is safer than allowing a drone to continue.
That decision is particularly difficult over populated areas. An incoming drone, the missile used to destroy it and falling debris can all harm people on the ground.
The economics of drone defense
Russia's Shahed-type strike drones are commonly estimated to cost between $20,000 and $50,000. Cheaper decoy variants may cost around $10,000.
An AIM-9X air-to-air missile used by Western fighter aircraft can cost hundreds of thousands of dollars. A Patriot interceptor can cost several million. Repeatedly using premium missiles against inexpensive drones creates an advantage for the attacker even when every target is destroyed.
Romania and other NATO members are therefore adding cheaper counter-drone systems. Romania has integrated the US-made Merops interceptor drone, which has been described as costing around $15,000 per unit, with the possibility of lower prices in large orders.
The goal is a layered defense: electronic warfare and low-cost interceptors for simpler threats, with fighter aircraft and advanced missiles available when the risk justifies them.
Why this matters to the United States
NATO's Article 5 commitment is designed to deter an armed attack on one member by treating it as an attack on all. Accidental or ambiguous drone incursions sit below that clear threshold while still testing the alliance's credibility and readiness.
For the United States, Romania is part of the defensive architecture protecting NATO's eastern flank and the Black Sea region. American personnel, equipment and security commitments are directly connected to how effectively the alliance manages these incidents.
The challenge is to impose consequences for repeated violations without allowing every stray drone to trigger uncontrolled escalation. That requires fast detection, affordable interception and steady political communication among allies.
Romania's experience is a warning about the shape of modern conflict. A war can cross a border without an invading army, one drone and one difficult judgment at a time.