The Great War: Tank Expansion is the first major expansion for The Great War and introduces some new aspects to the game. The Tank Expansion includes 6 WWI tanks, additional tiles, and new scenarios that can only be used with the base game.

Contents:
36 Double-Sided Terrain Tiles
- 12 River Straight / Forest
- 7 River Curve / Forest
- 5 Building / Trench Straight
- 5 Hill / Trench Straight
- 6 Trench Curve / Trench Straight
- 1 Mine Crater / Trench Straight
9 Fortified Position / Wire Double-Sided Rectangular Markers
4 Bridge / Damaged Bridge Double-Sided Rectangular Tokens
20 British / German Double-Sided Tank Silhouette Square Tokens
15 Bogged Down / Ditched Tank Markers
4 Captured Tank Tokens
6 WWI Tank Models
2 British Mark IV Male Tanks
2 British Mark IV Female Tanks
2 German A7V Tanks
2 German 105mm Howitzer Models
8 Crew Figures
1 Rule and Scenario Booklet with 22 WWI Battle Scenarios
2 Unit and Terrain Summary Sheets