The group's first operations were on the Malay-Thai border, followed by Pontian, Labis, and South Mallaca, and then off over the Briny to Sarawak, Borneo.
Mr Paku, 1RNZIR Reunion Committee 2016 chairman, said there were 167 battalion members still alive, which was "pretty good considering we went to Malaysia in 1963".
The reunions were intended to get those who had served together to sit, talk, and laugh about the good times.
"We don't want to talk about the bad things because we don't want to remember the bad things", Mr Paku said.
"Let's talk about the good times, that's what we want to remember."
During the weekend Mr Paku had reunited with the man who had accidently shot him in the head during their service. "He had left the gun running and I standing was next to him", Mr Paku said, "It was a sterling sub-machine gun but to us that was a baby ... I only needed eight stitches.
"We had a good laugh."
The gatherings are held in different locations every two years. While it had not been held in Hawke's Bay for about 10 years, it will be hosted here again next year at the Taradale RSA.