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It's easy to commemorate every Tongan who fought for New Zealand in the Great War - just 94 signed up to fight for the tiny country. Eleven died from combat, illness and accidents.
Twelve Pacific nations were once part of the British Empire, but never the Kingdom of Tonga.
The reason the "Friendly Isles" supplied soldiers to the New Zealand Expeditionary Force (NZEF), the UK and even France was due to its Treaty of Friendship with Britain. Things got complicated when Tonga was obliged to round up Samoan-Germans within its borders in May 1916, because they were subjects of an enemy nation.
NZEF contingents from Niue and Rarotonga comprised only 140 soldiers each. Tonga didn't supply a distinct contingent. Concerns were expressed over how these groups, used to tropical temperatures, would fare in Europe's bitter 1916 spring. Indeed, many died of illnesses which were new to their bodies and were buried in Europe; 82 per cent of Niueans alone were hospitalised - not surprising when marching in the cold and digging trenches at night were typical tasks.