I just pasted part of the article, it is worth reading.
https://www.bbc.com/news/articles/cq69qnvj6nlo
It was an attack of astonishing ingenuity – unprecedented, broad, and 18 months in the making.
On 1 June more than 100 Ukrainian drones struck air bases deep inside Russia, targeting nuclear-capable long-range bombers.
The scale of the operation dubbed "Spider Web" became clear almost as soon as it began, with explosions reported across several time zones all over Russia - as far north as Murmansk above the Arctic Circle, and as far east as the Amur region, over 8,000km from Ukraine.
The Russian Defence Ministry confirmed the attacks had occurred in five regions of Russia - Murmansk, Irkutsk, Ivanovo, Ryazan and Amur - but stated planes had been damaged only in Murmansk and Irkutsk, while in other locations the attacks had been repelled.
In photos released shortly after the attack, Vasyl Maliuk, the head of the Security Service of Ukraine (SBU), can be seen looking at a satellite map of airfields in which the bases in the locations listed by Russia are clearly identifiable.
The operation
Maliuk said the drones were smuggled into Russia inside wooden cabins mounted on the back of lorries and concealed below remotely operated detachable roofs.
The lorries were then apparently driven to locations near airbases by drivers who were seemingly unaware of their cargo; then, the drones were launched and set upon their targets.
Videos circulating online show drones emerging from the roof of one of the vehicles involved. One lorry driver interviewed by Russian state outlet Ria Novosti said he and other drivers tried to knock down drones flying out of a lorry with rocks.
"They were in the back of the truck and we threw stones to keep them from flying up, to keep them pinned down," he said.
According to unverified reports by Russian Telegram channel Baza – which is known for its links to the security services – the drivers of the lorries from which the drones took off all told similar stories of being booked by businessmen to deliver wooden cabins in various locations around Russia....
