Ukrainian Defense Forces Strike on St. Petersburg and Kronstadt: Key takeaways
On the morning of June 3, the Ukrainian Defense Forces launched a drone attack on an oil terminal in St. Petersburg and the «Kronstadt» naval base — located over 1,100 km from the Ukrainian border.
This occurred against the backdrop of the opening of the St. Petersburg International Economic Forum (SPIEF) — Russia's premier economic platform, where Vladimir Putin is scheduled to speak on June 5. Arriving foreign delegations witnessed skies blanketed in thick black smoke extending for dozens of kilometers around.
Beyond direct economic damage to Russia, the operation carries significant military and political ramifications.
Details of the Strike
The attack utilized drones from the Ukrainian manufacturer Fire Point, which have already proven their effectiveness during previous strikes against Russian refineries, oil depots, and military-industrial complex facilities.
The «St. Petersburg» oil terminal, with a throughput capacity of 10 million tons per year, was hit. It is crucial for petroleum product exports and directly supplies the Russian army's needs.
Additionally, drones operated by the Unmanned Systems Forces of the AFU struck the corvette «Boykiy» (Project 22380 «Steregushchiy»), which was sitting in a dry dock in Kronstadt.
The «Boykiy» carries Kh-35U anti-ship missiles, as well as anti-aircraft and artillery systems, and was commissioned into the fleet in 2013. Given its dimensions, the ship can be classified as a light frigate — making it a major surface combatant. Russia routinely deployed the «Boykiy» for operations near NATO borders and to escort shadow fleet tankers under international sanctions.
Military Significance of the Operation
St. Petersburg is a critical political and economic center for the Russian Federation, while the «Kronstadt» naval base serves as the heart of the Russian Navy's Baltic Fleet. Situated on Kotlin Island, it guards the maritime approaches to St. Petersburg.
The Baltic Fleet acts as a Russian military outpost on the western border with NATO, and a portion of its surface ships and submarines are capable of carrying tactical nuclear weapons.
Both locations should have been protected by air defenses that are, if not on par with Moscow, then close to it. For this purpose, assets from both the fleet and the entire Leningrad Military District, including aviation, are available.
The Ukrainian drones traveled toward their targets through the entire night, giving the Russian military ample time to detect and intercept them. Yet, the Russian army proved incapable of defending such a critical axis.
Political Dimension
The political aspect is tightly intertwined with the St. Petersburg International Economic Forum, which kicked off on the exact day of the drone raid.
SPIEF is a venue where the Russian leadership attempts to project a «humane» face to foreign elites and solidify relations with sympathetic international circles. The Kremlin positions it as the «Russian Davos» — though it features only one true «rock star»: Vladimir Putin.
Following Russia's full-scale invasion of Ukraine in 2022, foreign nations began a mass boycott of the forum, leading to attendance by representatives of the Taliban instead.
In 2026, Russia has attempted to restore the forum's former prestige. For the first time since 2022, a delegation from the United States was expected to attend, alongside highly promoted announcements by Putin.
However, the strike by Ukrainian drones — the aftermath of which was clearly visible to foreign delegations — proves that Putin lacks control over the situation, even in the city where his political career began.
The Repeatedly Battered Baltic Fleet
This marks the first attack by the Ukrainian Defense Forces against «Kronstadt», the main base of the Baltic Fleet. However, it is far from the fleet's first losses in the Russo-Ukrainian War.
Russia has consistently deployed Baltic Fleet marines to the invasion of Ukraine to serve as standard infantry.
Specifically, the Baltic Fleet's 336th Marine Brigade was heavily committed and sustained severe casualties.
Back in April, operators of the 413th USF «Raid» Regiment struck the command and observation post of one of the battalions belonging to the 336th Brigade, 120th Marine Division of the Russian Baltic Fleet.