Jean Baptiste Eugène Estienne was a general of artillery and a specialist in military engineering, one of the founders of modern French artillery and French military aviation, and the creator of the French tank arm. He is considered by many in France to be the Père des Chars.

A tank is an armoured fighting vehicle intended as a primary offensive weapon in front-line ground combat. Tank designs are a balance of heavy firepower, strong armour, and battlefield mobility provided by tracks and a powerful engine; their main armament is often mounted within a turret. They are a mainstay of modern 20th and 21st century ground forces and a key part of combined arms combat.