UK to send 20,000 troops to Nato's largest military exercise since the Cold War to practice repelling an invasion by Russian President Vladimir Putin's forces as Grant Shapps warns 'the foundations of the world order are being shaken to their core'
The service personnel will be joined by one of the Royal Navy's new aircraft carriers, eight warships, as well as the RAF's F35 lightning attack aircraft, which will practice flying in imitated conflict scenarios.