Exercise Listening Lion, Dartmoor (2014) 

Royal Marines from 30 Commando IX Group, are hosting the largest joint Electronic Warfare exercise to date in Dartmoor until June 28.
The month long exercise sees UK, US, Australian, New Zealand and Canadian military, known as the 5-Eyes, combine in a joint training environment that aims to improve relations between Royal Navy, Army and Air Force and their respective nations' Radio Reconnaissance Teams (RRT) and associated coordination and analysis teams.