Staff from NATO's Allied Rapid Reaction Corps (ARRC) have deployed from their headquarters in Gloucester to London to help with the coronavirus outbreak.
The move is in support of Operation Rescript - the codename for the Ministry of Defence's (MOD) response to the pandemic in the UK.
Specialist military planners from the UK Armed Forces and personnel from the French army are among the group deploying to the capital, the ARRC said in a statement.
Major Rob Kinnerley, from the ARRC, said: "It's important as a military to respond because we've got the organisational skills to make it happen. "We're there, dependable, we've done this before in times of crisis. and we're ready to react pretty quickly to anything that comes up.
"I think the doctors and nurses have done an amazing job, and I'm just happy to shoulder the burden a little bit for everyone."