Question: The 105th Infantry Regiment was an infantry regiment of the New York Army National Guard, originally, it was known as the 2nd New York Volunteer Infantry Regiment, but it was redesignated, in which year?

Context paragraphs:
174th Infantry Regiment (United States): The 174th Infantry Regiment was an infantry regiment of the United States Army, New York Army National Guard.  It traces its heritage back to the American Civil War, where it was called the 74th New York Volunteer Infantry Regiment.  The 174th saw service in the Civil War, and along the Mexico–United States border.  It was deactivated in 1945.

299th Cavalry Regiment (United States): The 299th Cavalry Regiment, formerly the 299th Infantry Regiment, nicknamed the "The Koa Regiment", is a unit of the Hawaii Army National Guard.  It was established in 1923 from the old 2nd Hawaiian Infantry Regiment, and it served during World War II as part of the 24th Infantry Division.  The name "Koa" comes from the Hawaiian word for "Warrior", and is currently headquartered in Hilo, Hawaii.  The 1st and 2nd Battalions, 299th Infantry were federally activated in 1968 to support the United States Army Pacific during the Vietnam War.  More recently 2nd Battalion, 299th Infantry Regiment deployed to Iraq and again after being re-flagged in 2007 as 1st Squadron, 299th Cavalry Regiment.

369th Infantry Regiment (United States): The 369th Infantry Regiment, formerly known as the 15th New York National Guard Regiment, was an infantry regiment of the New York Army National Guard during World War I and World War II.  The Regiment consisted mainly of African Americans, though it also included a number of Puerto Rican Americans during World War II.  It was known for being the first African American regiment to serve with the American Expeditionary Forces during World War I. Before the 15th New York National Guard Regiment was formed, any African American that wanted to fight in the war had to enlist in the French or Canadian armies.  The regiment was nicknamed the Harlem Hellfighters, the Black Rattlers, and the Men of Bronze, which was given to the regiment by the French.  The nickname "Hell Fighters" was given to them by the Germans due to their toughness and that they never lost a man through capture, lost a trench or a foot of ground to the enemy.

105th Infantry Regiment (United States): The 105th Infantry Regiment was an infantry regiment of the New York Army National Guard that saw combat in the American Civil War, World War I, and World War II.  Originally, it was known as the 2nd New York Volunteer Infantry Regiment, but it was redesignated in 1916.  The 105th fought as a part of the 27th Infantry Division during both World Wars, and was highly decorated for its actions during the Battle of Saipan, where its dogged defense against the largest Japanese Banzai charge of the war decimated its ranks, but prevented the American effort on the island from collapsing.

153rd Infantry Regiment (United States): The 153d Infantry Regiment (First Arkansas) is a United States infantry regiment, currently represented in the Arkansas Army National Guard by the 1st Battalion, 153rd Infantry, headquartered at Malvern, Arkansas, and 2nd Battalion, 153rd Infantry, headquartered at Searcy, Arkansas, elements of the 39th Brigade Combat Team.  The regiment was also represented by the 3rd Battalion, 153rd Infantry Regiment headquartered at Warren, Arkansas until that unit was deactivated on 5 September 2005.  The regiment was activated as the 1st Arkansas Volunteer Infantry for the Spanish-American War, but did not deploy overseas.  The regiment was activated for World War I, redesignated as the 153rd Infantry and shipped to France as a part of the 39th Division, but became a replacement division and personnel were reassigned to other AEF units.  The regiment was activated for World War II and deployed to the Aleutian Islands, participating in the Aleutian Islands Campaign.  Recently, elements of the regiment have participated in two deployments in support of Operation Iraqi Freedom, in 2004 and again in 2008.

2nd New York Volunteer Infantry Regiment: The 2nd New York Volunteer Infantry Regiment was an infantry regiment that served in the Union Army during the American Civil War.  It is also known as the Troy Regiment.

106th Infantry Regiment (United States): The 106th Infantry Regiment is an infantry regiment of the New York Army National Guard that traces its history to the 23rd New York Volunteer Infantry Regiment which fought in the American Civil War and the Pancho Villa Expedition in 1916.  When the United States entered World War I on the side of the Allied Powers, it was assigned to the 27th Infantry Division.  During World War II, the 106th served in the Pacific Theater and acted both independently and as parts of larger divisions.

199th Infantry Regiment (United States): The 199th Infantry Regiment is a regiment of the United States Army, Louisiana Army National Guard.  They are no longer a maneuver element, and today perform duties as a Regional Training Institute at Camp Beauregard, LA.  The 199th Infantry Regiment was formed on 1 May 1952 and served the state of Louisiana until 4 August 1960, when it was consolidated with the 156th Infantry Regiment.  Between 1960 and 1997, the remnants of the 199th became known as the Louisiana Military Academy, and conducted training for the Guard.  The regiment was reactivated on 3 July 1997 as the 199th Regiment, in order to serve as the Louisiana National Guard's RTI.  Today, they teach the following courses; Officer Candidate School (OCS), Warrior Leadership Course (WLC), Advanced Leadership Course, Military Police School (31B), Horizontal Engineer School (12N), Vertical Engineer School (12W), and Transportation School (88M).

154th Infantry Regiment (United States): The 154th Infantry Regiment ("Third Arkansas") was a United States infantry regiment, which was created from the 1st and 2nd Battalions of the 3rd Arkansas Infantry Regiment, Arkansas National Guard, in 1917.  The Regiment was activated as for World War I, re-designated as the 154th Infantry and shipped to France as a part of the 39th Infantry Division (United States), but became a replacement regiment and its personnel were reassigned to other AEF units.  The 154th Infantry Regiment was never reactivated in the Arkansas National Guard following World War I.

69th Infantry Regiment (New York): The 69th Infantry Regiment is an infantry regiment of the United States Army.  It is from New York City, part of the New York Army National Guard.  It is known as the "Fighting Sixty-Ninth", a name said to have been given by Robert E. Lee during the Civil War.  An Irish heritage unit, as the citation from poet Joyce Kilmer illustrates, this unit is also nicknamed the "Fighting Irish", immortalized in Joyce Kilmer's poem "When the 69th Comes Home".  Between 1917 and 1992 it was also designated as the 165th Infantry Regiment.  It is headquartered at the 69th Regiment Armory in Manhattan.

Supporting paragraphs: 105th Infantry Regiment (United States) 2nd New York Volunteer Infantry Regiment
Answer: 1916