Finland and Sweden scrambled fighter jets to identify a group of Russian military aircraft over the Gulf of Finland in their first joint operational identification mission, as security concerns continue to rise around the Baltic Sea.

The Finnish and Swedish Quick Reaction Alert (QRA) aircraft were deployed on September 24 after Russian military aircraft were detected flying in international airspace over the Gulf of Finland, according to the Finnish Defence Forces. The Russian group included a Tu-134 transport aircraft, MiG-31 fighter jets and Su-30 fighter jets.

Finnish and Swedish aircraft tracked and identified the Russian formation before completing the mission. The operation took place in international airspace, meaning the reported incident was not itself an airspace violation by the Russian aircraft.

The joint mission comes as NATO’s northern and eastern members have increased surveillance and readiness following Russia’s war in Ukraine and a series of recent airspace incidents in the region.

What happened over the Gulf of Finland?

The Finnish Air Force said its QRA aircraft were scrambled on Thursday after Russian military aircraft were detected over the Gulf of Finland.

Swedish fighters joined the Finnish aircraft in identifying the Russian formation. The Finnish Defence Forces described it as the first joint operational identification mission conducted by the two countries’ air forces.

The Russian group consisted of:

• A Tu-134 transport aircraft
• MiG-31 fighter jets
• Su-30 fighter jets

The aircraft were operating in international airspace, according to Finland.

Why did Finland and Sweden launch QRA aircraft?

Quick Reaction Alert aircraft are kept ready to respond rapidly when unidentified or potentially concerning aircraft are detected.

The objective of an identification mission is generally to establish what aircraft are present, monitor their behavior and ensure that they remain outside protected national airspace.

In this case, Finnish and Swedish aircraft identified the Russian formation and completed the operation without any reported airspace violation.

The mission therefore represents a surveillance and identification operation, rather than a reported engagement between Russian and Nordic aircraft.

Why is the joint Finland-Sweden mission significant?

The operation is notable because it brought Finnish and Swedish fighter forces together in an actual operational identification mission for the first time.

The two Nordic countries have significantly deepened their defense cooperation in recent years. Both are now NATO members: Finland joined the alliance in April 2023, followed by Sweden in March 2024.

Their military integration has added new capabilities to NATO’s northern flank, particularly around the Baltic Sea and the Arctic region.

Swedish Prime Minister Ulf Kristersson said the operation demonstrated the coordination and trust developed between the two countries.

“It is a concrete expression of the readiness and trust we have built together,” Kristersson said in a post on X, describing the mission as an expression of Nordic, Nordic-Baltic and broader NATO cooperation.

He also said the Baltic Sea had become more vulnerable while arguing that it was also better protected.

What is happening in the Baltic Sea region?

The Gulf of Finland is strategically important because it connects the Baltic Sea to St. Petersburg and Russia’s Baltic Fleet facilities.

The broader Baltic region has seen heightened military surveillance since Russia launched its full-scale invasion of Ukraine in 2022.

NATO members bordering the Baltic Sea have increased monitoring of air and maritime activity, while incidents involving aircraft, drones and other military activity have repeatedly drawn attention.

The latest Finland-Sweden operation comes only a day after a separate incident involving a Russian military helicopter and Poland.

Did a Russian helicopter enter Polish airspace?

Yes, according to Poland’s military authorities.

On September 23, a Russian Mi-8 helicopter crossed briefly into Polish airspace after approaching from Russia’s Kaliningrad region, according to Poland’s Operational Command of the Armed Forces.

The helicopter entered Polish airspace north of Braniewo at about 11:08 a.m. local time and remained there for approximately 42 seconds. Polish authorities said it penetrated roughly 300 meters into Polish territory.

Polish radar tracked the helicopter throughout the incident.

Fighter aircraft were scrambled and ground-based forces and equipment were placed on standby, according to the Polish military. Poland’s Operational Command said the nature of the incident indicated that Russia was again testing the readiness of Polish air defenses.

That characterization is Poland’s assessment; there has been no independent evidence presented establishing the Russian pilot’s intent.

How is the Polish incident different from the Gulf of Finland mission?

The distinction is important.

In Poland, authorities said a Russian military helicopter entered Polish airspace, which Warsaw described as a violation.

In the Gulf of Finland incident, the Russian aircraft were reported to have been operating in international airspace. Finnish and Swedish fighters were scrambled to identify and monitor them, not because the Russian aircraft had been reported to cross into Finnish or Swedish airspace.

The two incidents nevertheless illustrate the level of air-defense vigilance now being maintained across NATO’s eastern and northern regions.

What aircraft did Finland and Sweden use?

Finland operates F/A-18 Hornet fighter aircraft, while Sweden operates JAS 39 Gripen fighters.

Both countries maintain QRA capabilities that allow aircraft to be launched quickly when unidentified or potentially concerning aircraft are detected.

The two air forces’ ability to conduct a joint operational identification mission reflects years of increasing military cooperation, which has become particularly significant since both countries joined NATO.

Why does the Baltic Sea matter to NATO?

The Baltic Sea has become one of Europe’s most closely watched security environments.

Several NATO countries have coastlines on the sea, including Finland, Sweden, Estonia, Latvia, Lithuania, Poland, Germany and Denmark.

Russia also maintains a strategically important presence through the Kaliningrad exclave and its Baltic Fleet facilities around St. Petersburg and the Gulf of Finland.

The geography means military aircraft and naval forces operating in the region can be relatively close to NATO territory even when remaining in international waters or airspace.

That proximity makes rapid identification particularly important.

Has NATO increased its readiness in the region?

NATO members have strengthened air policing and surveillance across the alliance’s eastern flank since Russia’s invasion of Ukraine.

The alliance’s members routinely scramble aircraft when unidentified or potentially threatening aircraft approach their airspace. Such missions can range from routine identification to escorting aircraft away from protected airspace.

A scramble itself does not necessarily mean an attack is underway or that a confrontation is imminent.

Instead, it is one of the standard mechanisms used to maintain situational awareness and protect national and allied airspace.

What does the latest incident mean for Finland and Sweden?

The joint operation demonstrates that Finland and Sweden can coordinate their fighter forces during an actual air-identification mission.

It also highlights how their NATO membership has unfolded alongside deeper Nordic defense cooperation.

But the September 24 operation should not be described as a Russian violation of Finnish or Swedish airspace. The Russian formation was reported in international airspace, and the Finnish Defence Forces described the mission as an identification operation.

The incident is therefore best understood as part of the region’s heightened surveillance environment rather than as a reported direct military confrontation.

TL;DR

• Finland and Sweden scrambled QRA fighter jets on September 24 to identify Russian military aircraft over the Gulf of Finland.
• The Russian formation included a Tu-134, MiG-31s and Su-30s.
• Finland said the aircraft were flying in international airspace.
• The mission was the first joint operational identification mission conducted by the Finnish and Swedish air forces.
• The operation followed a separate September 23 incident in which Poland said a Russian Mi-8 briefly entered its airspace.
• The two incidents are different: one involved identification in international airspace, while Poland reported an actual airspace incursion.
• The missions reflect heightened air-defense vigilance around NATO’s northern and eastern flanks.