New Zealand Expeditionary Force
...that nearly half the eligible male population of New Zealand served in the New Zealand Expeditionary Force during World War I?
...that nearly half the eligible male population of <a href="./New_Zealand" id="mwAdw" rel="mw:WikiLink" title="New Zealand">New Zealand</a> served in the <b id="mwAd0"><a href="./New_Zealand_Expeditionary_Force" id="mwAd4" rel="mw:WikiLink" title="New Zealand Expeditionary Force">New Zealand Expeditionary Force</a></b> during <a href="./World_War_I" id="mwAd8" rel="mw:WikiLink" title="World War I">World War I</a>?