Water was also in very short supply, and 85 percent of Kiwi soldiers suffered from dysentery.
Newshub spoke to 108-year-old Bill Mitchell and 102-year-old Bruce Powell.
"You felt the shift in ambience and the shift in spirit."
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"I was so shocked that I even felt sorry for the enemy."
"Over the last few years you've seen people wearing their grandfather's, great-grandfather's medals."
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Now Jimmy Gordon needs help distributing them.
Services and parades are back on after they were cancelled last year.