 Nyorai mberi kweiyi ndima - MuHondo Yenyika I, Himmatsinhji akagamuchira basa renguva pfupi muBritish Indian Army, uye akaona basa muMesopotamia. Vaviri vehama dzake vakashandawo mhiri kwemakungwa munguva yehondo muzukuru, Savaisinhji Devisinhji, akakuvadzwa muhondo yeAfrica, nepo hama, Dajirajsinhji, yakaurayiwa muchiito muFrance muna 1917. Pakupera kwehondo, Himmatsinhji akanga akwidziridzwa kuva kaputeni. Musi wa 26 Kurume 1919, Himmatsinhji akagamuchira basa rakakosha muBritish Indian Army semutevedzeri wechipiri, ane zuva kubva musi wa 21 Gunyana 1918. Akasimudzirwa kuva lieutenant musi wa 21 September 1919, uye kuva kaputeni musi wa 26 March 1924. 