The Russian army may have lost 14 helicopters in a single day, according to British intelligence.

Analysts have stated that on October 17, when the ATACMS missile strike occurred, it is likely that nine Russian military helicopters in Berdiansk and five in Luhansk were destroyed.

"There is a real possibility that this strike will force Russia to relocate its operational bases and command nodes further behind the front lines, increasing the strain on logistics chains," the report says.