Tuhia he tomokanga mō tēnei wāhanga - Ko te hītori o te SIGINT o te Tari ka taea te aroturuki ki te whakatūnga o te hōtuhi irirangi Finnish i te tau 1927 e Reino Hallamaa, he kaitiaki hōtuhi Defence Command, i te mea ka tīmata tana hītori GEOINT i te tau 1812 me te whakatūnga o te kura rangahau hōia Haapaniemi me te ratonga topographic. Ko ngā angitu o ōna tīmatanga e whakaarotia ana he mea nui ki ngā pakanga matua o te Winter
me te Pakanga Whakauru i te 1939-1944, penei i te matauranga i te pakanga nui rawa atu i roto i te hitori o nga whenua Nordic, te Pakanga o Tali-Ihantala.