Kuwait-born Abdullah Albadri, 34, was tackled by armed police after he leapt up an embassy fence armed with a pair of four-inch knives last May.
Jurors were told he had tried to get into the grounds in Kensington, west London, to “exact revenge” for the killing of children in Gaza.
On Friday, a jury at the Old Bailey, which deliberated for nearly 14 hours, found him guilty of preparation of terrorist acts and possession of two bladed articles.
The court had heard how Albadri was refused asylum after he twice entered the UK in small boats in 2021 and April 2025.
The defendant, who was born into the stateless Arabian Bedoon tribe, said he had been jailed and mistreated for campaigning for human rights in Kuwait.
On 28 April last year, he was seen on CCTV walking for an hour from Kilburn in northwest London to the embassy with his head covered by dark sunglasses and a distinctive red and white headscarf.
After reaching the embassy just before 6pm, Albadri made a salute-like gesture and tried to scale the 8ft high metal fence.
Within seconds, two armed diplomatic protection officers reached up and grabbed the defendant, pulling him to the ground.
Pc Libby Chessor told jurors it had been “challenging” pulling Albadri off the fence because he had been holding on “quite strongly”.
She said: “The way he was walking towards the embassy, the things he was saying, how quickly he jumped up, I believed it was his intent to get over that railing.”
Albadri was pinned down by officers and handcuffed before being searched.
On police body-worn video shown in court, Albadri indicated he had “got my weapons”.
Officers seized two red-handled 10cm (four-inch) knives with serrated blades along with pieces of paper including a “martyrdom note”.
Albadri told police: “I wanna make a crime inside there, why are you stopping me? Why are you stopping from making crimes?”
He went on to complain: “Why didn’t you let me in?”
Before being put into a police van, Albadri was heard on police body-worn video to say: “You know it’s just a message, yeah.
“They need to stop this f****** war on children.
“We need to live in harmony because the children who live there, it’s all the same.
“We are living in the same Earth, it’s not a faraway place…”
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