Britain must be ready to counter the "intensifying threats" to everyday life emerging in space with the RAF being given a key role, the Defence Secretary has said.
Gavin Williamson announced the launch of the UK's first Defence Space Strategy, confirming he would boost the number of personnel working in the sector by a fifth over five years to more than 600.
He said the RAF Air Command would take on responsibility for "command and control" of UK military space operations.
The Strategy will include plans to protect UK operations against "emerging space-based threats", such as the "jamming of civilian satellites used for broadcasters and satellite navigation to support military capabilities".
The Defence Secretary said: "We must make sure we are primed and ready to deter and counter the intensifying threats to our everyday life that are emerging in space.
"That's why today I'm announcing the RAF is taking the lead in this area and why we plan to increase the number of personnel covering space.
"Satellite technology is not just a crucial tool for our Armed Forces but vital to our way of life, whether that be access to our mobile phones, the internet or television.
"It is essential we protect our interests and assets from potential adversaries who seek to cause major disruption and do us harm.
"Britain is a world leader in the space industry and our defence scientists and military personnel have played a central role in the development of the EU's Galileo satellite programme alongside British companies, so it is important we also review our contribution and how we plan for alternative systems in this crucial area."
Defence Minister Guto Bebb is set to speak at the Defence Space Conference in London on Monday and is expected to will say space is a "vital part" of the British economy.