In their 2013 book `` Tuntematon Lauri Törni '' [ `` Unknown Lauri Törni '' ] , authors Juha Pohjonen and Oula Silvennoinen argue that Törni 's conviction for treason was justified because the SS training he received at the end of World War II was provided to help achieve a National Socialist coup in Finland .
In a 2013 book `` Tuntematon Lauri Törni '' [ `` Unknown Lauri Törni '' ] , Juha Pohjonen and Oula Silvennoinen say that Törni 's conviction for treason was correct . They say the SS training that Törni received at the end of World War II was to support a National Socialist coup in Finland .