David enlisted in the Australian Army Reserve in 1997 to 1998 and relisted in 2000 with 41 RNSWR and later 9 RQR. He attended his recruit training at Bardia Barracks Ingleburn NSW.
In 2002 he transferred to the Australian Regular Army as an operator Supply, after completing his initial Employment training at the Army logistic training centre Bandiana he was posted to 1 CSSB Darwin. Other posting included 1st/15th Royal New South Wales Lancers, Special Operations Combat Support Service Company (SOCSSC) which in 2007 was renamed to Special Operations Logistic Squadron (SOLS) and 7 CSSB before discharging in 2008.
Operational Service: Operation Gold Sydney Olympics 2000, Operation Acolyte Commonwealth Games 2006, Operation Slipper II 2006.
David joined the QLD RSL at Tewantin in 2009 and was actively involved with the Men’s Shed. In 2012 was elected as a board member and in 2015 was elected Secretary and currently holds the position. 2017 David nominated and was elected Vice President of the Sunshine Coast & Regional District Branch.