During an impromptu press availability beside Israeli Prime Minister Benjamin Netanyahu, President Trump responded to a question about a drone attack against the personal residence of Russian President Vladimir Putin.
President Trump noted that he was informed of the attack by President Putin during an early Monday phone call between the two leaders.

Ukraine President Volodymyr Zelenskyy has denied the accusation that Ukraine carried out this particular attack.  The attack took place while Zelenskyy was in Florida meeting with President Trump.

U.S. media have said the attack on Putin may be a lie; however, with physical evidence from the defense operation, it is less likely Russia just made up the attack.  At this moment in the conflict, Putin doesn’t need domestic propaganda.

CONTEXT: British intelligence previously confirmed their participation in the successful Ukraine drone attack against long-range Russian bombers.  That operation, highly controversial at the time, was previously confirmed by President Trump saying the U.S. was not informed in advance.
The “coalition of the willing” has also expanded.  Outside the Ukraine regime, the current group making up the “coalition of the willing” includes: the U.K, France, Germany, Canada and Australia.  It is worth noting the additions are all part of the British commonwealth (U.K, Canada, Australia).
 
I suspect the British did it

Source: theconservativetreehouse.com