Quoting the words of a former Governor-General, Mr Brownless said Anzac Day showed how it was possible for commonplace men and women to rise to heights of sacrifice which had never been known to be possible.
"They raised to a higher plane the standard of life of every one of us . . . let us make this day truly one of remembrance of the costs of war, and of gratitude and respect for peace."
Mr Brownless then acknowledged the presence at the service of a "very special returned gentleman", 100-year-old Trevor Blaker.
The main address was delivered by Commander Lisa Hunn of the Royal New Zealand Navy, who has been appointed to command HMNZS Te Mana.
She said the world of 2017 was a very different place from when Anzac Day was first commemorated.
"In the 21st century, our task is to be prepared before the worst occurs. Today threats to our nation are varied and develop extremely quickly. They range from natural disasters through to cyber attacks, and from terrorism to large-scale war. All too commonly our forces have to deal with people who have no regard for human rights or the laws of war," Commander Hunn said.