Batemans Bay Vietnam Veterans president Tony Herbert said the service commemorating the battle of Long Tan would be held at the monument in Rotary Park on Beach Road.

"We will be forming up at 10.30am, with a fly pass of RAAF fighter plane expected at 10.55am," he said.

"The service will start at 11am and will take about 45 minutes."

A lunch will be hosted at the Soldier's Club, 12.30 for 1pm, with all serving and ex-service personnel and their partners invited - $25 per head.

For more information phone Tony Herbert 4472 7426 or 0418 862 491.

Originally known as Long Tan Day, Vietnam Veterans Day commemorates the men of D Company 6RAR, who fought the battle of Long Tan on August 18, 1966.

More than 100 Australian and New Zealand soldiers battled more than 2000 Vietnamese and Viet Cong troops in a rubber plantation not far from the village of Long Tan.

In the ensuing battle, 18 Australians were killed and 24 were wounded.

The day has been known as Vietnam Veterans Day since 1987 following a successful Welcome Home Parade.