Last October, a UK-born son of Somali refugees who had been radicalized by al Shabaab attacked a British official with a knife, likely because of the man’s support of Israel, Iran’s number 2 opponent after the US.
IIRC, the official was UK MP Sir David Amess- he was stabbed to death.
More recently, this past April, al Shabab threatened to assassinate both Biden and Trump.