Grant Burgham, event director for Clarion’s DSEI, on the event’s 20th anniversary, establishing government partnerships and looking to the future.  What has changed with your appointment as event director? As the only fully integrated defence and security event, DSEI 2019 will once again be divided into the core Aerospace, Land, Naval, Security and Joint Zones. In addition, I have also introduced new areas to the show floor, reflecting key growth c...