"You could feel this empathy coming from the crowd. They knew why we were there, to support the Queen, and what she has done in her lifetime."
It was the second time Giles had flown to London this year, having put her name forward to be part of Operation Platinum, the Queen's Platinum Jubilee.
When she returned to RNZAF Base Ohakea, where she works as a fuel technician, she was told she had stood out and her name had been suggested for the future contingent for Operation London Bridge, the response to the death of the Queen.
"The week before we left, I got a call and was told, you need to get yourself to Wellington."
The NZDF contingent arrived in the United Kingdom a week before the funeral and spent the week rehearsing at Pirbright, just outside of London.
Giles said a highlight of the week was a visit from the Prince and Princess of Wales to thank the Commonwealth contingents for coming this far, to which the New Zealand contingent returned thanks by performing the Defence Force haka.
The funeral procession was far bigger than the Platinum Jubilee, she said.
"Last time, the closest I got to the Queen was when she came out on her balcony. This is certainly more sombre. We're here to honour the Queen, the only monarch we've known in our lifetimes. When I told my family I was going, they were amazed."