World War II: Sicily; Naples-Foggia; Normandy (with arrowhead); Rhineland (with arrowhead); Ardennes-Alsace; Central Europe Armed Forces Expeditions: Dominican Republic (Operation Power Pack); Grenada (Operation Urgent Fury) The 1st Battalion, 320th Field Artillery Regiment (1-320th FAR) is the field artillery battalion assigned to the 2nd Brigade Combat Team, 101st Airborne Division.

As part of the nation's mobilization, 1-320th was constituted, organized and activated in August 1917 as Battery A, 320th Field Artillery (A/320th FA).

As part of the original 82nd Division, A/320th FA played a key role at Lorraine, St. Mihiel, and the Meuse Argonne region in France.

On 1 August 1951 it was reorganized and redesignated as the 320th Airborne Field Artillery Battalion (AFAB), and activated at Fort Benning, Georgia.

26 April 1965, President Johnson ordered paratroopers from the 82d Airborne Division; XVIII Airborne Corps; Company E, 7th Special Forces Group; and Marines from the Amphibious Squadron 10 to the Dominican Republic as part of Operation Power Pack to protect American lives and to prevent a possible Castro-type takeover by Communist elements.

[2][3] On 26 May 1965, US Forces began withdrawal from the Dominican Republic as Central and South American troops assumed peacekeeping duties.

Elements of Batteries B and C arrived on the island during the evening of 25 October 1983 without their guns and provided rear area security in the vicinity of the runway.

During the preparations for OIF I, A/1-320 FAR deployed two weeks ahead of the battalion's main body to support port operations of the entire invasion.

[4] 1-320 FAR under the 2nd Brigade Combat Team, 101st Airborne Division (Air Assault) was ordered to deploy to the CENTCOM AOR in late September 2005.

Upon completion of a JRTC mission rehearsal exercise in April 2005, it began a 5-month intensive train up to prepare for the next deployment.

The battalion conducted live fire exercises in June and then began transitional training in motorized infantry tactics due to the change of mission for Iraq.

The unit conducted a RIP/TOA (relief in place/transfer of authority) with 1–118th FA (Georgia Army National Guard) and the 70th Engineer Battalion (3rd Brigade, 1st Armored Division) and completed the TOA on the 26th.

The unit was also responsible for finding numerous weapons and ammo caches which included hundreds of mortar, artillery, tank rounds and 200 pound aerial bombs; seized weapons including 8 mortar tubes, 500 rifles and RPG launchers, and thousands of rounds of small arms ammunition.

In Taji, Iraq the battalion suffered 6 KIAs by enemy action: In late November, the battalion received a change of mission to assume the duties of the Area Defense Operations Cell (ADOC) at Camp Victory located in the Victory Base Complex (VBC) surrounding the Baghdad International Airport.

Meanwhile, at FOB Falcon, 16 soldiers of the "Top Guns" Battalion Military Transition Team (MiTT) were conducting continuous combat operations in support of 1–22 IN and 1–10 CAV in and around Southeast Baghdad.

Under the command of LTC David Flynn, Task Force Top Guns operated as a maneuver battalion in the Arghandab District of Kandahar Province.

The battalion conducted Operations Mountain Guardian, Top Guns, and Strike I, II and III, as well as providing security for numerous VIPs, including the President of the United States, the US Secretary of Defense, the Czech Republic Minister of Defense, numerous US congressmen and ambassadors from various countries.