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Although credited Wes Studi and Dylan Baker do not appear in this episode.
The Goliath tanks were modified Soviet T-54/55 Battle Tanks.
The song David plays on the Broadwood Grand is Un Sospiro by Franz Liszt.
The military vehicles of the opposition seems to be Swedish. The registration plates are the same as used in the Swedish military, and when David meets with the Gath-officer, a glimpse of an Volvo L3314 (also known as Pltgb 903) with the Swedish text "Maxlast 570kg" on it.
The skyline of Shiloh is a CGI-modified New York City. The capitol building is actually the New York Public Library.