However , Halonen allowed Finland to join European Union Battlegroups in 2006 and the NATO Response Force in 2008 .
This was reversed in the 2000s , when Tarja Halonen and Erkki Tuomioja made Finland 's official policy to resist other EU members ' plans for common defense .
Tarja Halonen allowed Finland to join European Union Battlegroups in 2006 and the NATO Response Force in 2008 .
This was reversed in the 2000s , when Tarja Halonen and Erkki Tuomioja made Finland 's official policy to resist other EU members ' plans for common defense .