The 158th Infantry Regiment is a tactical unit of the United States Army that falls under the umbrella of the Indiana National Guard. It was initially organized in 1917, during World War I, and has since been involved in various military operations. The regiment's history includes service in World War II, the Korean War, and several other conflicts. The 158th Infantry Regiment is characterized by its adaptability, discipline, and commitment to serving the nation. It embodies the values of the U.S. Army: Loyalty, Duty, Respect, Selfless Service, Honor, Integrity, and Personal Courage. The regiment's structure includes several battalions, each with a specific role within the broader operational context. Today, the 158th Infantry Regiment continues to uphold its traditions of service and readiness in support of U.S. military missions at home and abroad.