Ukraine
UK says the "new tactic by Russia" is designed to gain information about Ukrainian air defence systems.
They have been nicknamed Vladimir Putin's private army.
The rate of injuries and deaths among troops has "significantly increased" since Moscow introduced "partial mobilisation".
Even as Moscow tries to renews its offences, pushing its air force would lead to "unsustainable aircraft losses", the MoD claimed.
“There’s a lot of stories out there that I just don’t think are particularly true," the defence secretary told BBC Breakfast.
The Russian president's fury was apparently aimed at the country's deputy PM.
Defence secretary says UK will not deploy RAF personnel to Ukraine during the war.
Rishi Sunak will lead the commemoration at 11am on Friday, February 24.
But Ministry of Defence says Russia lacks the combat power for a “decisive” impact.
A lack of trained personnel and resources is to blame.