The 52nd Infantry Division ("52.Infanterie-Division") was a division of the Imperial German Army during World War I.
 The division was formed on March 6, 1915, from units taken from other divisions or newly raised.
 The division was initially mixed, with two infantry regiments from the Grand Duchy of Baden, one infantry regiment from Prussian Saxony, and Prussian and Baden support units (cavalry, artillery, engineers, and service and support units).
 While the infantry regiments and the divisional cavalry squadron were regular army units, the rest of the division was made up of reserve units and units formed during the war.
 The 66th Magdeburg Infantry Regiment was taken from the 7th Infantry Division, and the 169th and 170th Infantry Regiments were taken from Baden's 29th Infantry Division.
 The 52nd Infantry Division became more Baden as the war progressed, as the 66th Magdeburg Infantry Regiment, the regiment from Prussian Saxony, was replaced on April 6, 1917, by Baden's 111th Infantry Regiment "Margrave Ludwig Wilhelm".
The 503rd Infantry Regiment, formerly the 503rd Parachute Infantry Regiment (PIR) and the 503rd Airborne Infantry Regiment (AIR), is an airborne infantry regiment of the United States Army.
 The regiment served as an independent regiment in the Pacific War during World War II; at Fort Campbell, Kentucky; in Okinawa, Japan; and in Germany.
 Regimental elements have been assigned to the 2nd Infantry Division, the 11th Airborne Division, the 24th Infantry Division, the 82nd Airborne Division, and the 173rd Airborne Brigade Combat Team.
 Regimental elements have participated in campaigns in the Vietnam War, Operation Enduring Freedom–Afghanistan, and Operation Iraqi Freedom.
 The regiment claims 15 Medal of Honor recipients: two from World War II, 10 from Vietnam, and three from Afghanistan.
 A parent regiment under the U.S. Army Regimental System.
 The regiment's 1st and 2nd Battalions are active, assigned to the 173rd Airborne Brigade, based at Caserma Ederle, Vicenza, Italy.
The 182nd Infantry Regiment is one of the oldest regiments in the United States Army.
 The regiment traces its history more than 230 years, when it was a colonial regiment of foot of the British Crown in Massachusetts.
 It later served in the Continental Army during the American Revolutionary War, with Union forces in the American Civil War, and as a federalized Massachusetts National Guard regiment with the U.S. Army during World War I and World War II.
 For many years the regiment was a mechanized unit, and in 2006 the regiment was converted into the 182nd Cavalry Regiment, headquartered at Melrose Armory in Melrose, Massachusetts.
 Converted back into infantry in 2010, the only active element of the regiment is the 1st Battalion, 182nd Infantry Regiment.
The 100th Infantry Battalion is the only infantry unit in the United States Army Reserve.
 In World War II, the then-primarily Nisei battalion was composed largely of former members of the Hawaii Army National Guard.
 The 100th saw heavy combat during World War II before and after combining with the 442nd Infantry Regiment, another mostly Nisei military unit, into a single fighting combat team.
 Based at Fort Shafter, Honolulu, Hawaii, the 100th Battalion has reservists from Hawaii, American Samoa, Guam and Saipan, and has deployed to Iraq and Kuwait.
 The unit was unofficially nicknamed the "Purple Heart Battalion", with the motto "Remember Pearl Harbor".
The 37th Field Artillery Regiment is a field artillery regiment of the United States Army, and parent regiment under the U.S. Army Regimental System.
 The regiment was first constituted 5 July 1918 in the National Army.
 The regiment served with the 10th Division during World War I, and the 2nd Infantry Division during World War II.
 Elements of the regiment have served with the 2nd Infantry Division, 6th Infantry Division, 79th Infantry Division, and 172nd Infantry Brigade, among other units.
 Two battalions of the regiment are currently active, the 1st Battalion, 37th Field Artillery is the direct support cannon battalion, in support of the 1st Stryker Brigade Combat Team, 2nd Infantry Division and the 6th Battalion, 37th Field Artillery is a Multiple Launch Rocket System battalion in the 210th Field Artillery Brigade.
The 442nd Regimental Combat Team is an infantry regiment of the United States Army, part of the Army Reserve.
 The regiment was a fighting unit composed almost entirely of American soldiers of Japanese ancestry (mostly from Hawaii) who fought in World War II.
 Most of the families of mainland Japanese Americans were confined to internment camps in the United States interior.
 Beginning in 1944, the regiment fought primarily in Europe during World War II, in particular Italy, southern France, and Germany.
He was in auto mechanic school when he was drafted into the military in 1940, two years before the Japanese attack on Pearl Harbor.
 He worked as a mechanic, but was eventually assigned to the all Japanese-American 442nd Regimental Combat Team, which became the most decorated unit for its size and length of service in the U.S. Army during World War II.
 He was an artillery spotter (forward field observer) assigned to C Battery.
 He was promoted to the rank of second lieutenant on October 19, 1944.
 Ito participated in the famous rescue of the "Lost Battalion", the first battalion of the 141st U.S. Infantry Regiment of the 36th Texas Division.
 The action took place in the Vosges Mountains, in France, in October 1944.
 Both units were attached to the Seventh U.S. Army.
 The Lost Battalion had been cut off and surrounded by the Germans.
 Lt. Ito was attached to I Company of the 442, which effected the rescue of the Lost Battalion.
 Though the 442nd suffered extremely heavy casualties in the engagement, Ito emerged unscathed.
 He was attached to I Company, of which only eight members survived this action.
 Of the rescue, Ito later recalled, "Looking back, it wasn't an easy outing, but having come through it intact, it was an experience that cannot be forgotten or easily duplicated.
 At the time, I thought that this was more or less a typical battle encounter with a strong enemy and not a special or unique mission.
 I guess my analysis is not shared by history."
 The U.S. Army later declared the Rescue of the Lost Battalion to be one of the top ten battles of the U.S. Army in its history.
The 502nd Infantry Regiment (502nd INF), previously titled the 502nd Parachute Infantry Regiment (502nd PIR), is an airborne infantry regiment of the United States Army.
 The regiment was established shortly after the American entry into World War II, and was assigned as a regiment of the 101st Airborne Division, "The Screaming Eagles", one of the most decorated formations of the U.S. Army.
 The regiment saw substantial action in the European Theater of World War II and was deactivated in 1945, shortly after the end of the war.
 Reactivating in a new form in 1956, the 502nd Infantry has served in the Vietnam War, the first Gulf War, Operation Iraqi Freedom, Operation Enduring Freedom in Afghanistan, and Operation Inherent Resolve in Iraq.
 It was removed from parachute status with the rest of the 101st Airborne Division in 1969, and since 1974, the regiment has been classified as an Air Assault unit.
 Currently, its 1st and 2nd battalions are active.
 Both battalions are assigned to the 2nd Brigade Combat Team, 101st Airborne Division (Air Assault).
On October 8, 1918, in the Argonne Forest ( ).
 Cornay was the scene of particularly heavy fighting on October 8, 1918.
 The 82nd US Infantry Division launched a series of attacks in the area, with 1st Battalion, 328 Infantry regiment (82nd Division) attacking to liberate Cornay and 2nd Battalion, 328th Infantry Regiment attacking into the Argonne Forest through Chatel Chehery (south of Cornay).
 Around 10:30 am, the German 125th Landwehr Wuerttemberg Regiment and 212th Prussian Reserve Regiment launched a determined counterattack against the American forces, which inflicted heavy casualties on the Americans, with more than 100 being captured.
 The 82nd Division was forced to retreat from Cornay.
 The town was retaken by the Americans the next day.
 Three kilometers to the south, Cpl Alvin C. York from Company G, 328th Infantry Regiment, 82nd Infantry Division, with the aid of 7 other soldiers, captured 132 German soldiers.
 For his actions York was awarded the US Medal of Honor.
The 326th Infantry Regiment was an infantry regiment of the United States Army that saw active service during World War I, as part of the 82nd Division and fought in the Meuse-Argonne Offensive and was inactivated in 1919.
 The regiment was reactivated during World War II, again as part of the 82nd Infantry Division, and was converted into a glider infantry formation, becoming the 326th Glider Infantry Regiment.
 Originally part of the 82nd Airborne Division, the regiment transferred to the 13th Airborne Division.
 However, despite training for almost three years, the 326th was never involved in any combat.

Question: What organization does Susumu Ito and 442nd Infantry Regiment have in common?
Answer: United States Army