When that commitment was interrupted because of injury and family matters, he turned to helping out others.
Mr Miller-Smith has been actively involved with the Riverton RSL for several years, mainly through Lynwood 509 cadets.
He has used his contacts there to help elderly veterans.
Get in front of tomorrow's news for FREE
Journalism for the curious Australian across politics, business, culture and opinion.
READ NOW‘After spending several months helping at my grandparents’ farm, I contacted them (Riverton RSL) to volunteer my time until I am able to re-enlist in the army,’ he said.
‘I am hoping to help more; I like to keep busy and I like to help where I can.
‘I have also been volunteering at the Southern River Animal Shelter three days a week.’
Mr Miller-Smith said he had always wanted to be in the army; his dad, grandfathers, aunt and stepdad all served in the defence force.
Previously enlisted in the army, Mr Miller-Smith was injured during basic training. He needed to be 12 months injury-free before he could re-enlist.
‘Unfortunately, my time in the army was cut short; I had urgent family matters at home and was injured during basic training. The stress of the situation made me realise I needed to come home, regroup and heal,’ he said.
‘The shin injuries are fully healed and I am ready to go back and make the army my life.’
He said he was looking forward to going back to the army and felt pride knowing he would make a difference.
With the Anzac centenary celebrations approaching on April 25, Mr Miller-Smith believes all soldiers should be paid the same respect.
‘The 100th anniversary means the same to me as the 50th or 99th,’ he said.
‘Our vets deserve the same respect regardless of the time gone by.’