Three war machines that changed the face of modern warfare forever.

Originally released by Bellum Entertainment, 2015. Streaming video file encoded with permission for digital streaming by Infobase on June 03, 2016.

Tank: Armor Plated Machines (2:27); --Tank: Patents (2:12); -- Tank: Production (1:44); -- Combat Aircraft: American Civil War (2:19); -- Combat Aircraft: Fighter Planes (3:50); -- Military Drone: Unmanned Aerial Vehicles (2:58); -- Military Drone: BQ7 Deployment (2:37); -- Origins Spotlight: Carbon Dioxide (1:45); -- Credit: Tank, Combat Aircraft, & Military Drone: Origins-The History of Everything! (0:26);.