It was originally nicknamed the "Keystone Division", as it was formed from units of the Pennsylvania Army National Guard; Pennsylvania being known as the "Keystone State". During World War II, it was given the nickname the "Bloody Bucket" division by German forces due to the shape and color of its red keystone insignia. Today the 28th Infantry Division goes by the name given to it by General Pershing during World War I: "Iron Division". The 28th is the first Army National Guard division to field the Stryker infantry fighting vehicle, as part of the Army's reorganization in the first decade of the 2000s.