Question: Henry Doctor, Jr was the Commanding General with how many soldiers in the 2nd Infantry Division?

Context paragraphs:
Operation Murfreesboro: In October 2006, the 1st Battalion, 9th Infantry Regiment (1-9 IN) deployed to east Ramadi for the 2nd Brigade of the 2nd Infantry Division's second tour to Iraq.  The "Manchus" were replacing the 506th Infantry Regiment (506 AR) from the 101st Airborne Division, and the 1st Armored Division (1 AD).  Many soldiers of the new battalion had previously been in east Ramadi during a 2004-2005 deployment under the colors of the 503rd Infantry Regiment (1-503 IN), thus giving the Americans a slight advantage in that many of the battalion's non-commissioned officers were already familiar with the terrain.

52nd Infantry Division (German Empire): 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".

Michael S. Tucker: Lieutenant General Michael S. Tucker (b. September 14, 1954) is a retired United States Army general who served Commanding General of the First United States Army from 2013 until 2016.  He formerly served as the Commanding General of the 2nd Infantry Division.

Jay W. Hood: Jay W. Hood is a retired United States Army Major General.  His final assignment was as Chief Of Staff of the United States Central Command.  His previous assignments include Commander of First Army, Division East, Fort George G. Meade, Maryland Commanding General of Joint Task Force Guantanamo (JTF-GTMO), Guantanamo Bay, Cuba; Assistant Division Commander (Forward), 24th Infantry Division and Deputy Commanding General (South), First Army, Fort Gillem, Georgia; Commander, 82nd Airborne Division Artillery and Commander, 3rd Battalion, 319th Field Artillery Regiment, 82nd Airborne, Fort Bragg, North Carolina; Commander, Battery D, 4th Battalion (Airborne), 325th Infantry (Battalion Combat Team), U.S. Army Southern European Task Force; and Commander, Battery A, 2nd Battalion, 321st Field Artillery Regiment, 82nd Airborne Division, Fort Bragg, North Carolina.  General Hood is a graduate of Pittsburg (KS) State University

Henry Doctor, Jr.: Lieutenant General Henry Doctor, Jr. was the Commanding General, 2nd Infantry Division, Eighth United States Army, based in the Republic of Korea (South Korea).  His last assignment was as an Inspector General of the U.S. Army.

2nd Infantry Division (United States): The 2nd Infantry Division ("Indianhead"; "2ID," "2nd ID", or "Second D") is a formation of the United States Army.  Its current primary mission is the defense of South Korea in the initial stages of an invasion from North Korea until other American units can arrive.  There are approximately 17,000 soldiers in the 2nd Infantry Division, with 10,000 of them stationed in South Korea, accounting for about 35% of the United States Forces Korea personnel.

Cornay: 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.

2nd Royal Bavarian Division: The 2nd Royal Bavarian Division was a unit of the Royal Bavarian Army which served alongside the Prussian Army as part of the Imperial German Army.  The division was formed on November 27, 1815, as the Infantry Division of the Munich General Command ("Infanterie-Division des Generalkommandos München.") .  It was called the 2nd Army Division between 1822 and 1848, again between 1851 and 1859, and again from 1869 to 1872.  It was called the 2nd Infantry Division from 1848 to 1851 (as well as during wartime) and was named the Augsburg General Command from 1859 to 1869.  From April 1, 1872, until mobilization for World War I, it was the 2nd Division.  In Bavarian sources, it was not generally referred to as a "Royal Bavarian" division, as this was considered self-evident, but outside Bavaria, this designation was used for it, and other Bavarian units, to distinguish them from similarly numbered Prussian units.  The division was headquartered in Ingolstadt from 1815 to 1817, in Regensburg from 1817 to 1822, and in Augsburg from 1822 to 1919, except for the period 1871-1873, when it was part of the German occupation forces in France.  The division was part of the I Royal Bavarian Army Corps.

David D. Halverson: LTG David D. Halverson assumed the duties of the commanding general of the U.S. Army Installation Management Command and Assistant Chief of Staff for Installation Management April 8, 2014.  Previously, he served as deputy commanding general/chief of staff, U.S. Army Training and Doctrine Command TRADOC.  Halverson assumed duties as the Deputy Commanding General/Chief of Staff, U.S. Army Training and Doctrine Command on 4 June 2012.  Halverson's first duty assignment was in the 1st Cavalry Division, Fort Hood, Texas in 1979 where he served as a Battalion Reconnaissance Officer, Battery Fire Direction and Executive Officer and Battalion Adjutant.  Since then, Halverson has served in various staff and leadership positions including command at every level from Battery to Post Command.  His commands include A Battery, 6th Battalion, 29th Field Artillery, 8th Infantry Division; 2nd Battalion, 82nd Field Artillery, 1st Cavalry Division; 2nd Infantry Division Artillery, Operational Test Command, and Commanding General, Fires Center of Excellence and Fort Sill.

37th Field Artillery Regiment: 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.

Supporting paragraphs: Henry Doctor, Jr. 2nd Infantry Division (United States)
Answer: 17,000