The exercises in the training pool are part of a team building exercise for top athletes contracted to Defense. They are all military too. Ex-triathlete and first sergeant major Frederik Van Lierde accompanies them. Frederik Van Lierde, Defense Top Sports Manager: “We are convinced within Defense that our social role is really important. If someone becomes world champion or someone becomes European champion, it will be on the news, a Belgian has won, so Defense gives that place to 30 top athletes.”