Ukraine hit fewer Russian planes than it estimated, US officials say

Sign up now: Get ST's newsletters delivered to your inbox

FILE PHOTO: A satellite view shows military aircraft, some sitting destroyed, at the Belaya air base, near Stepnoy, Irkutsk region, Russia, June 4, 2025, after Ukraine launched a drone attack, dubbed \"Operation Spider's Web\", targeting Russian strategic bombers during Russia's ongoing invasion of Ukraine. 2025 Planet Labs PBC/Handout via REUTERS/File Photo

Ukraine says it targeted four air bases across Russia using 117 unmanned aerial vehicles.

PHOTO: REUTERS

Google Preferred Source badge

WASHINGTON - The United States assesses that Ukraine's drone attack over the weekend hit as many as 20 Russian warplanes, destroying around 10 of them, two US officials told Reuters, a figure that is about half the number estimated by Ukrainian President Volodymyr Zelensky.

Still, the US officials described the attack as highly significant, with one of them cautioning that it could drive Moscow to a far more severe negotiating position in the US-brokered talks to end more than three years of war.

Russian President Vladimir Putin told US President Donald Trump in a telephone conversation on June 4 that Moscow would have to

respond to the attack

, Mr Trump said in a social media post.

Mr Trump added it "was a good conversation, but not a conversation that will lead to immediate peace."

Ukraine says it targeted four air bases across Russia using 117 unmanned aerial vehicles launched from containers close to the targets, in an operation codenamed "Spider's Web."

It released footage on June 4 showing its drones striking Russian strategic bombers and landing on the dome antennas of two A-50 military spy planes, of which there are only a handful in Russia's fleet.

The two US officials, who spoke on the condition of anonymity, estimated the Ukrainian strikes destroyed around 10 and hit up to 20 warplanes in total.

That estimate is far lower than the one Mr Zelensky offered to reporters in Kyiv earlier on June 4. He said half of the 41 Russian aircraft struck were too damaged to be repaired.

Reuters could not independently verify the numbers from Kyiv or the United States.

Russia, which prioritises its nuclear forces as a deterrent to the United States and Nato, urged the United States and Britain on June 4 to restrain Kyiv after the attacks.

Russia and the United States together hold about 88 per cent of all nuclear weapons.

The United States says it was not given any notice by Kyiv ahead of the attack.

The war in Ukraine is intensifying despite nearly four months of efforts by Mr Trump, who says he wants peace after the deadliest conflict in Europe since World War II.

The White House did not immediately respond to a request for comment.

The Russian and Ukrainian embassies also did not immediately reply.

Escalation risk

Ukraine's domestic security agency, the SBU, said the damage to Russia caused by the operation amounted to US$7 billion (S$9.01 billion), and 34 per cent of the strategic cruise missile carriers at Russia's main airfields were hit.

Commercial satellite imagery taken after the Ukrainian drone attack shows what experts told Reuters appear to be damaged Russian Tu-95 heavy bombers and Tu-22 Backfires, long-range, supersonic strategic bombers that Russia has used to launch missile strikes against Ukraine.

Russia's Defence Ministry has acknowledged that Ukraine targeted airfields in the Murmansk, Irkutsk, Ivanovo, Ryazan and Amur regions and were repelled in the last three locations.

It has also said several aircraft caught fire in the Murmansk and Irkutsk regions.

The attack has bolstered Ukrainian morale after months of unrelenting Russian battlefield pressure and numerous powerful missile and drone strikes by Moscow's forces.

It also demonstrated that Kyiv, even as it struggles to halt invading Russian forces, can surprise Moscow deep inside its own territory with attacks up to 4,300km from the front lines.

Influential Russian military bloggers have accused Russian authorities, especially the aerospace command, of negligence and complacency for allowing the nuclear-capable bombers to be targeted.

Mr Trump's Ukraine envoy said the risk of escalation from the war in Ukraine was "going way up," particularly since Kyiv had struck one leg of Russia's "nuclear triad," or weapons on land, in the air and at sea.

"In the national security space, when you attack an opponent's part of their national survival system, which is their triad, the nuclear triad, that means your risk level goes up because you don't know what the other side is going to do," Mr Trump's envoy, Mr Keith Kellogg, told Fox News on June 3. REUTERS

See more on