The 1st Battalion, 108th Field Artillery Regiment, 56th Stryker Brigade Combat Team, is the only direct support field artillery battalion in the only National Guard Stryker Brigade in the United States Army.

Mission The 1-108th Field Artillery's mission in support of the 56th SBCT is to provide accurate and responsive fires including close and counterfire to the maneuver units of the SBCT.

History The 108th Field Artillery was formed on December 11, 1840, at a time when many militia units were forming across the country. It was established as an infantry company in the 1st Volunteer Infantry Regiment by CPT Thomas Tustin and was called The National Guards after the Marquis de Lafayette's unit Les Guardes de Nationale, one of several in the state to use this name. It recruited for the Mexican War and volunteered for service but it was not needed since Pennsylvania had already supplied its required quota of troops. In 1856 the unit incorporated itself as the Infantry Corps of National Guards of the City of Philadelphia, Pennsylvania. The unit eventually expanded from a company to a battalion and by 1860 it expanded into a regiment, the 2d Infantry Regiment, and paraded as such on December 11, 1860. It was part of the Reserve Brigade Militia and was known as the First Blue Reserves. On February 22, 1861, the Regiment was in Harrisburg to receive President-elect Abraham Lincoln.

At the beginning of the Civil War, the regiment volunteered for three months' service and became the 19th Regiment Pennsylvania Volunteers. The regiment served the majority of its time garrisoning and occupying the City of Baltimore as it harbored a large number of Confederate sympathizers. It was instrumental in the apprehension of Marshal Kane, the Sheriff of Baltimore, who was a Confederate sympathizer suspected of planning revolt. At the end of the ninety days, a large portion opted to re-enlist thus forming a new unit called the 90th Regiment Pennsylvania Volunteers. The unit was equipped with modified Harper's Ferry .69 caliber smoothbore muskets. The 90th saw action at Second Manassas (where it suffered approximately 218 casualties), Antietam and Fredericksburg in 1862. In 1863, the regiment was lightly engaged during the battle of Chancellorsville but was in heavy fighting at Gettysburg. The 90th was part of the 2nd Brigade, 2nd Division, I Corps in the Army of the Potomac. It was heavily involved during the battle on July 1, 1863, and was positioned as the far right of the I Corps line. When the XI Corps was forced to retreat the regiments right flank was exposed and forced to fall back.

It was at this time, during the retreat through town that the Regimental Chaplain was killed after visiting with the wounded of the regiment who were in a church behind enemy lines. The 90th then spent the rest of the battle in reserve arriving on the scene of Picket's Charge just as it was being repulsed. During the battle, the regiment suffered 8 killed, 45 wounded and 40 missing/captured. The majority of the casualties occurred on the first day with most of the missing captured during the retreat through town. After Gettysburg, the unit took part in the fall campaign in Virginia. In 1864, the regiment took part in the battles of Wilderness, Spottsylvania and Cold Harbor suffering several hundred casualties. The regiment took place in the campaign leading up to Petersburg and the early stages of the Siege of Petersburg. It was engaged at Petersburg during the fateful mine explosion on June 30, 1864. During a skirmish at Weedon Station on July 17–18, 1864, the regiment was heavily engaged and Confederate troops had succeeded in penetrating the unit on the 90th's right flank and were in the rear of the 90th. The 90th began to receive fire from both the Confederates and the Union Artillery to its rear. The regiment received the order to withdraw but lost approximately 90 men captured including its commander LTC Leech and around 20 dead and wounded. The survivors were pulled from the line and those soldiers whose enlistments had not expired were merged with the 11th Pennsylvania Volunteer Infantry. The 90th Regiment fought in 12 campaigns during the Civil War and earned seven Medals of Honor. During the Civil War, the unit suffered well over eight hundred casualties including 103 combat deaths; it also suffered 127 non-battle deaths in its three years of service. After the heavy fighting during the Petersburg Campaign, the unit was mustered out of Federal Service on November 26, 1864.

After the Civil War, the unit was re-designated as the 2nd Infantry Regiment in 1867. It served in this capacity for the remainder of the nineteenth century and was activated by the Governor for the Great Railroad Strike of 1877. During the strike, violence erupted and shots were fired. Several Guardsmen were killed as well as some strikers. In 1898 the regiment was activated for the Spanish–American War but did not serve outside the United States. Instead, the unit spent the majority of their service guarding several areas vital to national security to include the Dupont Powder Works in Delaware.

In 1916 the regiment was again activated for service on the Mexican border as part of the Mexican Punitive Expedition after Pancho Villa's raid. The regiment served in Texas the entire period. On October 23, 1916, while still in Texas, the regiment was converted from an infantry unit to a field artillery and trained on 4.7 inch howitzers. The regiment was now called the 2nd Field Artillery Regiment, PNG. The regiment trained in its new role as artillerymen until the end of the crisis in February 1917.

The unit did not have long to practice their new skills when their country called them again. This time, for service in France during World War I. The unit was activated on July 24, 1917, and later was redesignated as the 108th Field Artillery Regiment. It was sent to Camp Hancock, GA in the late summer of 1917. It was part of the 53rd Field Artillery Brigade, which was part of the 28th Division. After training in Georgia for several months and receiving new recruits to bring it up to combat strength, the unit was transferred to Camp Utpton in April 1918. On May 18–19, the 108th with the rest of the 53rd FA Brigade set sail for England and arrived overseas on May 31, 1918, in Liverpool, and from there it went to Le Havre, France. After a brief stay in Le Havre, the regiment went to train on the French artillery pieces at Fort de Meucon. The 108th was equipped with, and trained heavily on, French 155 mm M1917 Schnieder howitzers. After extensive training with the French, the 108th and the rest of the 53rd FA Brigade rejoined the 28th Division on August 8, 1918, during fighting around Fismettes. Fismettes was taken and then lost, then retaken during late August, until the Germans retreated across the Aisne River in early September. On September 8, 1918, the whole 28th Division was relieved by the French 62nd Division and the 28th Division began to move toward Clermont-en-Argonne. During the night from September 19–20, 1918 the division re-entered the front line relieving the French 73rd and 120th Divisions in preparation for the Meuse-Argonne Offensive. On September 26, 1918, the division launched its attack as part of the Meuse-Argonne Offensive. The 55th Brigade captured the town of Varennes and soon after, the 108th had set up firing positions in the town and was firing in support of the divisions advance. The 108th fired missions in support of the 82nd Division after the 28th Division was withdrawn from the front. They were soon detached from the 28th Division and sent north to Belgium and fought with the 91st Division in the Ypres sector. They did not rejoin the 28th Division until the spring of 1919 in LeMans, France just prior to their departure. They earned five campaign streamers for actions in which they participated.

After it demobilized the unit began to reorganize over the period from 1919 to 1920 and became known as the 2nd Field Artillery, Pennsylvania National Guard. On April 21, 1921, it became known as the 108th Field Artillery, Corps Troops. In late 1926, after several years of discussion on its design, the regiment Coat of Arms and Distinctive Unit Insignia were approved as currently worn by members. Also, in 1926, the 108th had as a visitor during its Annual Training the III Corps Area Commander, MG Douglas MacArthur. During Annual Training 1932 the 3-108th FA teamed with the 103rd Observation Squadron and used an air observer in fire missions. In 1936 the 108th updated its Schneider howitzers by getting pneumatic tires. In 1938 the regiment was once again at the forefront of joint air-ground operations when it used an auto-gyro (a forerunner to the helicopter) for fire missions and to recon firing positions.

A little over twenty years after fighting in France the country once again called on the 108th FA, this time to fight Germany in World War II. In February 1941 the regiment was activated for one year under a call up for the national emergency as declared by President Roosevelt. On December 7, 1941, the war came and the 12-month activation became indefinite. In 1942, the regiment was split.

Headquarters and Headquarters Battery 108th FA became Headquarters and Headquarters Battery 193rd Field Artillery Group, 1st Battalion 108th FA became the 193rd Field Artillery Battalion and 2nd Battalion became the 108th FA Battalion.

The 108th FA Bn fought as part of the 28th Infantry Division in Europe with M1 155mm Howitzers from Normandy Beach to the Battle of the Bulge and into Germany. The 108th trained in the US and later Wales for amphibious operations. It was originally scheduled to make an amphibious landing on the Cherbourg Peninsula but it was canceled when the peninsula was over-run. The 108th took part in the liberation of Paris and marched through the city. By September 1944 it was located along the northern Luxembourg border and Germany was within range of the guns. It was involved in the heavy fighting in the Battle of the Huertgen Forest in November 1944 where the division suffered heavy casualties. After being pulled out of the Huertgen Forest the unit was assigned to a quiet sector along the Our River to rest and take in replacements. On 16 December the German Wehrmacht began their Ardennes Offensive also known as the Battle of The Bulge. The brunt of the offensive was directed against the 28th Division which was holding a front of over 20 miles. During the Battle of the Bulge the 108th was stationed in support of the 109th Infantry outside of the town of Diekirch alongside the 107th FA. Shortly after 1000 on December 16, 1944, elements of the German Army bypassed units of the 109th INF and were firing into A Battery of the 108th. The men had seen figures moving through the fog but thought they were American. Fierce action commenced as the gunners were forced to fight as infantry and other batteries provided support. As the 109th struggled to hold their line against the German attack the 108th was able to provide support from their 155mm howitzers pinning German shock troops on the bank of the Our River. The next day the Germans renewed their attack and once again A Battery 108th FA, along with A Battery 107th FA came under heavy German attack. Once again they fought as infantry while other batteries provided support. LTC James Rosborough (a former member of the 108th from World War I, who rose to command the battalion in 1942), commander of the 107th FA, gathered a force and rescued the two batteries. For his actions, LTC Rosborough was awarded the Distinguished Service Cross.