▁ 2 7 th ▁J äger ▁Battalion ▁( Fin land ) ▁as ▁a ▁volunte er ▁on ▁ 2 9 ▁December ▁ 1 9 1 5 . ▁ ▁The ▁J äger ▁Mov ement ▁consisted ▁of ▁Finn ish ▁volunte ers ▁who ▁had ▁sli pped ▁away ▁to ▁Germany ▁to ▁train ▁as ▁soldiers ▁and ▁to ▁fight ▁during ▁World ▁War ▁I . ▁Many ▁of ▁these ▁volunte ers ▁were ▁motiv ated ▁by ▁the ▁goal ▁of ▁obtain ing ▁Finn ish ▁independence ▁from ▁the ▁Russian ▁Empire . ▁Gr ound st ro em ▁was ▁made ▁a ▁lieutenant . ▁He ▁fought ▁in ▁batt les ▁on ▁the ▁German ▁Eastern ▁Front ▁on ▁the ▁M isa ▁River , ▁the ▁G ulf ▁of ▁R iga ▁and ▁the ▁G au ja . ▁Gr ound st ro em ▁married ▁Elisabeth ▁R olf s , ▁a ▁German ▁woman , ▁in ▁ 1 9 1 8 . ▁ ▁Gr ound st ro em ▁was ▁influenced ▁by ▁a ▁militar ism ▁that ▁he ▁thought ▁benef icial ▁to ▁young ▁men , ▁including ▁" country ▁boys " ▁as ▁well ▁as ▁" book w orm s ▁and ▁spo ilt , ▁slo ppy ▁id lers ". ▁In ▁his ▁view , ▁military ▁training , ▁besides ▁prepar ing ▁a ▁person ▁for ▁the ▁future , ▁built ▁mus cle ▁and ▁character . ▁In ▁ 1 9 1 9 ▁he ▁wrote ▁that ▁military ▁service ▁can ▁build ▁an ▁un sh ak able ▁sense ▁of ▁duty ▁in ▁the ▁individual . ▁The ▁bar ra cks ▁life , ▁where ▁many ▁cons cript s ▁live ▁close ▁together , ▁removes ▁p ett iness , ▁self ish ness ▁and