Nyorai kupfuurira kweiyi ndima - Parry akadanwa kuBar paInner Temple uye akarovedzwa senhengo yeChester neNorth Wales Circuit. Pakatanga Hondo Yenyika Yekutanga, Parry akanyoresa uye aive mutevedzeri mu5th Royal Welch Fusiliers, Territorials. Akashanda muEurope, Gallipoli, Egypt nePalestine pakati pa1914 na1919. Akakuvadzwa paSuvla Bay ndokupinzwa muchipatara muCairo. Panguva yaakakuvadzwa paSuvla, kwaakatapukirwawo nechando, Parry akanga akwira kuva kaputeni. Akakuvadzwawo katatu muhondo muGaza
, panguva iyo akanga akwira kuchinzvimbo chechikuru, muhondo iyo akakunda Distinguished Service Order muna 1917. Nokuda kwoushingi hwake mune zvimwe zviito Parry akanongedzerwa mumashoko uye akawana Mutemo weNire.