- EbookThe Battle for the Maginot Line, 1940Clayton Donnell
- EbookEben-Emael & the Defence of Fortress Belgium, 1940Clayton Donnell
- EbookBreaking the Fortress Line, 1914Clayton Donnell
- EbookThe Defence of Sevastopol, 1941–1942Clayton Donnell
- EbookSeries: FortressGordon L. Rottman
- EbookSeries: CampaignPeter Armstrong
- EbookSeries: New VanguardChris Bishop