Hundreds of people gathered for the Anzac Day dawn service in Tumby Bay on Thursday morning.
The service was opened with the Lord's prayer, led by local pastor Trevor Simpson.
Vietnam veteran David Brand then spoke at the service, on what he described as the "hot topic" of social inclusion.
He said the Vietnam and post-Vietnam era had presented the most physical and emotional effects from service, but that veterans from all conflicts suffered unique struggles in relation to their service.
Mr Brand went to Vietnam in 1971, and served as a mechanic servicing army vehicles.
He said upon return, many were expected to return to their prior work, and hardly talked of their time in the war.
"Veterans, if they are given the right amount of help as they come out of the armed forces, they will learn that they have got help around them...they need the community and the people around them to include them in activities and operations and things that they are doing so they can feel welcome back into society," he said.
"The transition from the forces back into society can be very challenging, and can cause people to take the wrong direction in life.
"We must unite as a community to deliver services...it's our responsibility, our duty to those who have served and sacrificed.
"Tumby Bay is a great place for social connected-ness and social inclusion."
The service continued with the prayer of remembrance, followed by the laying of the wreaths, and the ode of remembrance, before the last post was performed and a minutes silence was observed.
The New Zealand and Australian national anthems were played before ex-servicemen and women marched to the end of the street.
Michelle Kenworth and Alexis Southern attended the dawn service, just days after returning from a visit to Gallipoli.
The two said it was a very emotional time to be there, and was thankfully quieter on April 21 when they visited.
Ms Kenworth's grandfather served in Papua New Guinea, and she wore his medals on Anzac Day to commemorate his service.