<prompt> Pedzisa mutsara unotevera: Armstrong akaberekwa musi wa11 June 1897 uye akadzidza paCheltenham College. Pashure pokuenda kuRoyal Military Academy Sandhurst, akapiwa basa muEast Surrey Regiment muna April 1915. Akashanda muFrance kubva muna 1916 kusvika muna 1918, kwaakakuvadzwa kaviri uye muna March 1918 akaitwa musungwa wehondo. Akadzoserwa kumusha muna December 1918, akashanda kuNorth Russia muna 1919 uye akapiwa Military Cross nokuda kwoushingi. Akanga aripo mu  <response>: Mesopotamia 1920-21 uye paIndia North West Frontier 1930-31, achishumira yakawanda yebasa rake repakati pehondo ne1st Battalion, East Surrey Regiment muEjipitori, Sudan, Hong Kong neIndia. 