Project Babylon: Gerald Bull’s Downfall (2006)

With money from both the Pentagon and the Canadian government, Bull established the High Altitude Research Project (HARP). By the time the Canadian government pulled out of HARP in 1967 in protest of the Vietnam War, Bull had managed to launch shells more than 60 miles into sub-orbital space. With the help of the CIA, Bull landed a contract to supply the South African government with 30,000 artillery shells, artillery barrels, and plans for an advanced Howitzer called the GC-45.

Source: www.damninteresting.com