Death Star (star Wars) -

Required complex logistics and "ghost" supply lines to hide the massive station from the Senate and the public.

: Building began in space above Geonosis approximately one year before the end of the Clone Wars. The Empire used various construction modules and later relocated the station to hidden sites to maintain secrecy. Death Star (Star Wars)

Relied heavily on forced labor, including prisoners on Narkina 5 who assembled parts for the superlaser. Required complex logistics and "ghost" supply lines to