TalonSoft's East Front: Campaign CD 1

"Campaign CD 1" is an expansion pack for the original "East Front". It will add 6 new nationalities (Poland, Hungary, Finland, Slovakia, Italy and Romania), 7 new campaign games and 50 new single battles. The package includes a revised and expanded (new unit data) game manual in printed form.

While the numbering implies that there are other add-on packages available for "East Front" this is the only one which was released separately. You must own "East Front" in order use this expansion pack.