As far as I know, Bledisloe Hall is still standing and being used as a display hall.
The war being referred to was was World War 2.
Being far away from the rest of the world we try to stay clear of wars,
Often we [NZ] send a small amount of peace keeping forces to United Nations Areas [as some of the medals of 1 1/2 - 2 months ago showed]
RE: Airfields and Stations in New Zealand Used By the RNZAF, Part 18