Question: Midewin National Tallgrass Prairie is located on the site of a former United States Army arsenal that opened during which war?

full_context: Document 1: American Prairie Reserve: The American Prairie Reserve (APR) is an independent non-profit organization that has privately undertaken a project in northeastern Montana to create a wildlife conservation area of over three million contiguous acres through a combination of both private and public lands. APR’s goal is to acquire and manage approximately 500,000 private acres, which will serve to “glue together roughly three million acres of existing public land” to create a wildlife complex for conservation and public access. National Geographic has compared the project to the creation of an American Serengeti in a DVD it created about this region in 2010 (“American Serengeti”). <sup class="reference plainlinks nourlexpansion" id="ref_http://channel.nationalgeographic.com/episode/american-serengeti-3765/Overview">[#endnote_]</sup> In a global assessment prepared for the Temperate Grasslands Conservation Initiative (TGCI), scientists identified the area of APR in northeastern Montana as one of only four remaining areas in the world that are viable options for landscape-scale grasslands conservation. To promote tourism and encourage donations, APR has opened a high-end safari lodge and it continues to operate low-cost campgrounds, recruit volunteers and acquire land.
Document 2: Savanna Army Depot: Savanna Army Depot was a 13062 acre installation, located on the eastern bank of the Mississippi River, in Carroll and Jo Daviess counties, around 7 mi north of Savanna, Illinois. It was opened in 1917 as a proving and testing facility for weapons developed at Rock Island Arsenal. In 1921 it became a weapons depot. The U.S. Environmental Protection Agency (EPA) listed the depot as a Superfund site in 1989. The depot was selected for closure through the Base Realignment and Closure process in July 1995 and was officially closed on March 18, 2000. The Jo-Carroll Local Redevelopment Authority (LRA) was established to redevelop a portion of the property for commercial and business usage referred to as the Savanna Depot Park. On September 26, 2003, the United States Department of Defense agreed to transfer 9404 acre of land to become the Lost Mound Unit of the Upper Mississippi River National Wildlife and Fish Refuge. 3022 acre were initially transferred with the rest to be transferred following environmental cleanup. The portion near Lock and Dam No. 12 was transferred to the United States Army Corps of Engineers and a small part to the Illinois Department of Natural Resources.
Document 3: Oklahoma Ordnance Works: The Oklahoma Ordnance Works (OOW) was a government-owned, contractor-operated (GOCO) facility that was built in Mayes County, Oklahoma to produce smokeless powder and other military explosives that were to be used during World War II. The facility was closed from 1946 until 1954, when production resumed until 1956, then closed again. In 1960, it was sold to the Oklahoma Ordnance Works Authority (OOWA), which converted most of the facility to become the mid America Industrial Park.
Document 4: Camp Ravenna Joint Military Training Center: Camp Ravenna Joint Military Training Center, formerly known as the Ravenna Training and Logistics Site and the Ravenna Army Ammunition Plant (RVAAP) and commonly known as the Ravenna Arsenal, is an Ohio Army National Guard military base located between Ravenna and Newton Falls and adjacent to the village of Windham in the U.S. state of Ohio. Before its present status as a training facility for the Ohio National Guard, Camp Ravenna was a military ammunition production facility for the United States Army. As an arsenal, the facility was at peak operation during World War II and would serve as an ammunitions plant in various roles until 1992. Camp Ravenna remains an important part of the history and geography of Portage County, Ohio. The facility occupies portions of Freedom, Windham, Charlestown, and Paris townships in Portage County, along with part of Braceville Township in Trumbull County.
Document 5: Tallgrass Prairie National Preserve: Tallgrass Prairie National Preserve is a United States National Preserve located in the Flint Hills region of Kansas, north of Strong City. The preserve protects a nationally significant example of the once vast tallgrass prairie ecosystem. Of the 400,000 square miles (1,000,000 km) of tallgrass prairie that once covered the North American continent, less than 4% remains, primarily in the Flint Hills. Since 2009, the preserve has been home to the growing Tallgrass Prairie bison herd.
Document 6: Little Missouri National Grassland: Little Missouri National Grassland is a National Grassland located in western North Dakota, USA. At 1028051 acres , it is the largest grassland in the country. Enclaved within its borders is Theodore Roosevelt National Park, which is managed by the National Park Service (and therefore not included in the preceding statistics). The Little Missouri National Grassland was once a part of the Custer National Forest, but is now a part of the Dakota Prairie Grasslands, a National Forest unit consisting entirely of National Grasslands. A predominant feature of the grassland is colorful and beautiful badlands, a rugged terrain extensively eroded by wind and water. It is a mixed grass prairie, meaning it has both long and short grass.
Document 7: Rock Island Arsenal: The Rock Island Arsenal comprises 946 acres , located on Arsenal Island, originally known as Rock Island, on the Mississippi River between the cities of Davenport, Iowa, and Rock Island, Illinois. It lies within the state of Illinois. It is home of First Army headquarters. The island was originally established as a government site in 1816, with the building of Fort Armstrong. It is now the largest government-owned weapons manufacturing arsenal in the United States. It has manufactured military equipment and ordnance since the 1880s. In 1919–1920 one hundred of the Anglo-American or Liberty Mark VIII tanks were manufactured, although too late for World War I. It is designated as a National Historic Landmark.
Document 8: Midewin National Tallgrass Prairie: The Midewin National Tallgrass Prairie (MNTP) is a tallgrass prairie reserve and United States National Grassland operated by the United States Forest Service. The first national tallgrass prairie ever designated in the U.S. and the largest conservation site in the Chicago Wilderness region, it is located on the site of the former Joliet Army Ammunition Plant between the towns of Elwood, Manhattan and Wilmington in northeastern Illinois.
Document 9: Pueblo Depot Activity: Pueblo Depot Activity "(PUDA)", formerly known as the Pueblo Ordnance Depot and the Pueblo Army Depot, was a U.S. Army ammunition storage and supply facility. Responsibility for the depot fell upon the U.S. Army Ordnance Corps, and the first civilians were hired in 1942 as operations began. The mission quickly expanded to include general supplies as well. It is a 24202 acre site located 14 mi east of Pueblo, Colorado. In 1945 they began to receive mass amounts of equipment returning from the combat theaters of World War II. Therefore, the mission expanded yet again to include the maintenance and refurbishing of artillery, fire control, and optical material. In 1951 the depot assumed responsibility to distribute U.S. Air Force ammunition for an eight-state area, as well as storage of strategic and critical materials for the General Services Administration (GSA). They were also tasked to rebuild and provide on-site maintenance support for guided missiles, ensure calibration and maintenance of electronic test equipment and radio-controlled aerial targets. They would also provide specialized training for new Army equipment as needed. In 1952, Rocky Mountain Arsenal in Denver, Colorado transferred chemical agents and chemical munitions to Pueblo Army Depot for secure storage. In 1974 Pueblo Army Depot was redesignated as Pueblo Depot Activity.
Document 10: Alabama Army Ammunition Plant: The Alabama Army Ammunition Plant (ALAAP), was a United States munitions plant built and operated during World War II. The facility is located four miles (6 km) north of Childersburg, Alabama in Talladega County, Alabama.
Document 11: Weldon Spring Ordnance Works: Weldon Spring Ordnance Works (WSOW) was a 17323 acre U.S. Government-owned, contractor-operated (GOCO) facility in St. Charles County, Missouri, 55 km west of St. Louis. The site was originally operated by the Atlas Powder Company during World War II from 1941 to 1945 to produce explosives. The Atomic Energy Commission acquired part of the property in 1955, and Mallinckrodt, Inc. processed uranium ore from 1957 to 1966 under contract. The site has been divided into several parcels, and ownership has transferred over the years. Two portions of the original WSOW property are now Superfund sites that require substantial cleanup efforts. The environmental remediation of the WSOW site is currently designated as a major project of the Defense Environmental Restoration Program of the United States Department of Defense. Part of the original property is still used by the Army Reserve as the Weldon Spring Training Area.
Document 12: Tallgrass Prairie Preserve: The Tallgrass Prairie Preserve, located in Osage County, Oklahoma near Foraker, Oklahoma, is owned and managed by The Nature Conservancy. It is protected as the largest tract of remaining tallgrass prairie in the world. The preserve contains 39000 acre owned by the Conservancy and another 6000 acre leased in what was the original tallgrass region of the Great Plains that stretched from Texas to Manitoba.
Document 13: Tallgrass Prairie National Preserve: Tallgrass Prairie National Preserve is a United States National Preserve located in the Flint Hills region of Kansas, north of Strong City. The preserve protects a nationally significant example of the once vast tallgrass prairie ecosystem. Of the 400,000 square miles (1,000,000 km) of tallgrass prairie that once covered the North American continent, less than 4% remains, primarily in the Flint Hills. Since 2009, the preserve has been home to the growing Tallgrass Prairie bison herd.
Document 14: Hackmatack National Wildlife Refuge: The Hackmatack National Wildlife Refuge is a newly established United States national wildlife refuge that will include noncontiguous properties, especially tallgrass prairie patches, wetland properties, and oak savanna parcels, located in the northwestern region of the Chicago metropolitan area and the southern part of the Milwaukee area. The refuge's boundaries encompass parts of McHenry County, Illinois, and Walworth County, Wisconsin. The refuge will be operated by the United States Fish and Wildlife Service, known as USFWS. 85 percent of the refuge will be in Illinois, and 15 percent in Wisconsin.
Document 15: Joliet Army Ammunition Plant: Joliet Army Ammunition Plant (JOAAP, formerly known as the Joliet Arsenal) was a United States Army arsenal located in Will County, Illinois, near Elwood, Illinois, south of Joliet, Illinois. Opened in 1940 during World War II, the facility consisted of the Elwood Ordnance Plant (EOP) and the Kankakee Ordnance Works (KNK). In 1945, the two were deactivated and combined forming the Joliet Arsenal. The plant was reactivated for the Korean War and renamed Joliet Army Ammunition Plant during the Vietnam War. Production of TNT ended in 1976, and the major plant operations closed shortly after in the late 1970s. The facility briefly revived an automated load-assemble-pack (LAP) artillery shell operation that was managed by the Honeywell Corporation during the Reagan administration in the 1980s before it was finally closed.
ground_truth: World War II