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Military unit From Wikipedia, the free encyclopedia
The 1st Battalion, 503rd Infantry Regiment (1–503rd IR) is an active duty airborne infantry battalion in the United States Army, assigned to the 173rd Airborne Brigade Combat Team and stationed in Vicenza, Italy. The battalion has served with the 2nd Infantry Division, the 11th Airborne Division, the 24th Infantry Division, the 82nd Airborne Division, and the 173rd Airborne Brigade; has been stationed in Korea, Italy and the United States; and earned campaign credits in World War II, the Vietnam War, Operation Enduring Freedom-Afghanistan, and Operation Iraqi Freedom.
| 1st Battalion, 503rd Infantry Regiment | |
|---|---|
Coat of arms | |
| Active | 1941–45 1951–84 1986–2005 2006–present |
| Country |  United States |
| Branch |  United States Army |
| Type | Infantry |
| Role | Airborne |
| Size | Battalion |
| Part of | 173rd Airborne Brigade Combat Team |
| Nickname(s) | First Rock |
| Engagements | World War II Vietnam War Operation Enduring Freedom Operation Iraqi Freedom |
| Commanders | |
| Battalion Commander | LTC Joe Branch |
| Command Sergeant Major | CSM Bryan O'Neal |
| Insignia | |
| Distinctive unit insignia |  |
| Beret flash |  |
The lineage of Company A, 503rd AIR, was reorganized and redesignated on 1 March 1957 as Headquarters and Headquarters Company, 1st Airborne Battle Group, 503rd Infantry, and remained assigned to the 11th Airborne Division (organic elements concurrently constituted and activated).
On 1 July 1958 the 1st ABG, 503rd Infantry was relieved from assignment to the 11th Airborne Division and assigned to the 24th Infantry Division when the 11th was reflagged as the 24th. The battle group's stay was short, and on 7 January 1959 it was relieved from assignment to the 24th Infantry Division and assigned to the 82nd Airborne Division.
The 1st ABG, 503rd Inf remained with the 82nd Airborne Division until 26 March 1963, when it was relieved from assignment to the 82nd and joined 2–503rd in its assignment to the 173rd Airborne Brigade. Shortly thereafter, on 25 June 1963, it was reorganized and redesignated as the 1st Battalion (Airborne), 503rd Infantry.
Note: The published Army lineage shows War on Terrorism "Campaigns to be determined". Comparison of the battalion's deployment dates with the War on Terrorism campaigns estimates that the battalion will be credited with participation in the six campaigns listed.
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