; (B) the 1st Battalion, 379th Field Artillery, which augmented the training base; and (C) the 2nd Battalion, 379th Field Artillery, which augmented the training base; and (2) by mobilizing the 3rd Battalion, 141st Infantry from the Texas Army National Guard to staff the entry gates of the installation; Whereas, although the 5045th Garrison Support Unit, the 1st Battalion, 379th Field Artillery, the 2nd Battalion, 379th Field Artillery, and the 3rd Battalion, 141st Infantry were eventually deactivated, Fort Sill mobilized and deployed numerous additional units and improved force protection during Operation Enduring Freedom; Whereas Fort Sill supported Operation Iraqi Freedom in 2003 by deploying more than 5,000 active duty soldiers and 400 reserve component soldiers, including— (1) C Battery, 3rd Battalion, 13th Field Artillery, the first unit to deploy from Fort Sill; (2) the 75th Field Artillery Brigade, which deployed more than 200 soldiers; (3) the 1st Battalion, 14th Field Artillery, which deployed approximately 300 soldiers; (4) the 2nd Battalion, 18th Field Artillery, which deployed approximately 300 soldiers; (5) soldiers from the 17th Field Artillery Brigade; (6) soldiers from the 212th Field Artillery Brigade; and (7) additional soldiers and units; Whereas Fort Sill is— (1) the only active duty Army installation of all the forts on the South Plains built during the Indian Wars; (2) the second-oldest continuously serving military installation west of the Mississippi River; and (3) designated as a National Historic Landmark; Whereas Fort Sill serves as home of— (1) the United States Army Field Artillery School; (2) the United States Army Air Defense Artillery School; (3) the 428th Field Artillery Training Brigade; (4) the 30th Air Defense Artillery Training Brigade; (5) the 434th Field Artillery Basic Combat Training Brigade; (6) the Marine Corps Field Artillery Military Occupational Specialty School; (7) a Marine Corps detachment; (8) the 75th (Forces Command) Fires Brigade