Royal Marines have been sent to guard the British Embassy in Ukraine amid fears diplomats could be targeted by Russian special forces.
Up to 30 British commandos are believed to be stationed inside the building in the capital, Kyiv.
It is understood British spooks received intelligence that either the embassy building or staff could be targeted by Russian agents or special forces.
The troops are thought to be trained in counter-terrorist operations and hostage rescue tactics. But the Ministry of Defence stressed they would not take part in combat.
They will also provide close protection to senior diplomats on trips around the country.
A Royal Marine brigadier has been sent to Ukraine to coordinate Britain’s military support. The senior officer was also involved in last year’s civilian evacuation from Afghanistan.
The MoD recently revealed that more than 2,200 British forces personnel were involved in roles supporting operations in Ukraine.
Meanwhile, it is understood that members of 104 Logistic Brigade have deployed to Germany to ensure the swift arrival of British weapons and ammo in Ukraine.
Defence Secretary Ben Wallace said this week that Russian forces were “effectively crippled” as Vladimir Putin insists on a “meat grinder” war strategy. He spoke out after US defence analysts said as many as 75,000 Russian soldiers had been killed or wounded in action.
The MoD said: “Military personnel have been deployed to support the UK’s diplomatic presence, and discussions around the significant training being offered to Ukraine.”
