91st Cavalry Regiment

The 1st Squadron, 91st Cavalry Regiment (Airborne) was a light Airborne Reconnaissance Squadron that served as the 173rd Airborne Brigade's reconnaissance, surveillance, and target acquisition (RSTA) squadron based out of Tower Barracks in Grafenwöhr, Germany. It is the only Airborne RSTA Squadron within the European, Middle East, and Africa (EMEA) area of responsibility. It was reflagged to 3rd Battalion, 504th Infantry Regiment on 8 January 2026.

The 91st Reconnaissance Squadron was originally organized as a mechanized cavalry reconnaissance squadron in the 1st Cavalry Division. It was the oldest and most experienced squadron (battalion) sized mechanized reconnaissance unit in the US Army. It completed six campaigns in North Africa, Sicily, and Italy during World War II, while attached to various infantry and armored divisions. The 91st Cavalry Recon Squadron was a non-divisional unit and reported directly to the Army's II Corps. The unit was deactivated on 23 June 1953.

The 91st Reconnaissance Squadron was re-activated, re-organized, and re-designated the 1st Squadron (Airborne), 91st Cavalry Regiment on 8 June 2006, at Conn Barracks in Schweinfurt, Germany. This reactivation was part of the transition of the 173rd Airborne Brigade to the U.S. Army's new modular force structure. This reactivation was the first time the colors of the 1st Squadron (Airborne), 91st Cavalry Regiment had flown since the end of World War II.

Organized as ″Task Force Saber″, 1-91 CAV has subsequently deployed three times to the International Security Assistance Force's (ISAF) Regional Command East in Eastern Afghanistan during Operation Enduring Freedom (OEF). During OEF VIII 2007-08, the Squadron deployed troops to Nuristan, Kunar, Nangarhar, and Paktika Provinces. During OEF X from 2009–10, and OEF XII-XIII from 2012–13, the Squadron deployed to Logar Province.

Soon after returning to Germany from OEF XIII in March 2013, 1-91 CAV moved from Conn Barracks in Schweinfurt to Tower Barracks in Grafenwöhr due to a Brigade realignment and the imminent closure of USAG Schweinfurt. After moving to Tower Barracks, 1-91 CAV shifted focus from the OEF mission to Airborne proficiency, and NATO support and tactical reassurance.

Since 2013, 1-91 CAV has conducted operations in Poland, the Czech Republic, Italy, France, Lithuania, Latvia, Estonia, Romania, Ukraine, Bulgaria, and Israel in addition to its German home. Most notably, 1-91 CAV represented the United States in several internationally recognized NATO exercises to include: Operation Steadfast Jazz, Operation Atlantic Resolve, Operation Allied Spirit, Operation Swift Response, Operation Agile Spirit, and Operation Saber Junction.

Most recently in January of 2017 and again in June of 2021, a detachment consisting primarily of members of the dismounted reconnaissance Troops (1-91 CAV), deployed to conduct security force operations in support of the Global War On Terror for Operation Atlantic Sentry.

In September of 2020, 1-91 CAV conducted an airborne operation into Vaziani, Georgia. The Squadron returned again in July 2021 for Operation Agile Spirit, conducting two more airborne operations onto Vaziani DZ. This time the unit jumped with Georgian Jumpmasters, making 1-91 CAV the first unit ever to earn Georgian Jump Wings.

In August 2021, 1-91 CAV deployed to Ramstein Air Base, where they spent two months supporting Operation Allies Refuge, contributing to the housing and transportation of roughly 40,000 Afghan refugees. The Squadron was awarded the Humanitarian Service Medal and the Army Superior Unit Award for its efforts during this period.

In January 2022, and again in January 2023, the UAS Platoon from Headquarters and Headquarters Troop deployed to Leon, Spain for a month each time to conduct joint training with the Spanish Army.

Members of Anvil Troop participated in and won the Gainey Cup - Best Scout Squad Competition at Fort Benning in May of 2025 ahead of 17 other teams from the United States, the Netherlands, Great Britain, Canada, Germany, and Ireland.