RUSSIA AND CHINA are planning to team up in space to exploit a Brexit Achilles heel that could prove disastrous in Europe, Express.co.uk has exclusively been told. The warning comes from Chair of the Defence Select Committee Tobias Ellwood after a US Space Force official said Russian forces are targeting global positioning system (GPS) satellites. The probes are used for navigation, mapping and other purposes. The Kremlin has reportedly been blocking the signal in Ukraine using "bus-sized" ground stations to target the Navstar constellation. Mr Ellwood, a former captain in the British Army, believes it's not long before this becomes...