Question: The Warren Lasch Conservation Center os most notable being used to preserve a submarine which played a part in what?

Context paragraphs:
Northeast Document Conservation Center: Founded in 1973, the Northeast Document Conservation Center (NEDCC) is the first non-profit conservation center in the United States to specialize in the preservation of paper-based library and archival materials.

Warren Lasch Conservation Center: The Warren Lasch Conservation Center is a building located at 1250 Supply Street at the former Charleston Navy Yard, in North Charleston, South Carolina.  Part of the Clemson Restoration Institute, the center is most notably being used to excavate, examine, and preserve the submarine "H. L. Hunley".  In recent years, the center has expanded research into various metal and architectural conservation topics.  The namesake of the building is Warren F. Lasch, who was chairman of Friends of the Hunley during the "Hunley"<nowiki>'</nowiki>s recovery.

Litchfield Jazz Festival: The Litchfield Jazz Festival began in 1996 at the White Memorial Conservation Center in Litchfield Hills in Connecticut.  The parent organization that runs the festival is Litchfield Performing Arts, Inc, a not-for-profit founded in 1981.  After two years at the White Memorial Conservation Center the festival moved to the Goshen Fairgrounds in Goshen, Connecticut, where it was held until 2008.  The festival moved to the grounds of Kent School in Kent, Connecticut in 2009, and was held there until 2011.  In 2012 the festival returned to the Goshen Fairgrounds in Goshen, CT.

Plains Conservation Center: The Plains Conservation Center is an outdoor education facility and state-designated natural area in Aurora, Colorado.  Its mission is to preserve Colorado's prairies, educate children about Colorado's eco-history, and nurture conservation efforts.  The center comprises two sites totaling approximately 8894 acre of land.  The main site is located on 1100 acre in Aurora and the second site is south of Strasburg on 7960 acre bisected by West Bijou Creek.  The Aurora property is owned by the Aurora Parks, Recreation and Open Space department.

Intermuseum Conservation Association: The Intermuseum Conservation Association (ICA) is a non-profit regional art conservation center located in Cleveland, OH.  It was the first such regional conservation laboratory in the United States.  The ICA currently offers conservation and preservation treatments for paintings, murals, works on paper, documents, objects of all media, outdoor sculpture, monuments, and textiles.  It employs over 20 conservators and staff.

Conservation-restoration of the H.L. Hunley: The conservation-restoration of the "H.L. Hunley" is currently being undertaken by the Warren Lasch Conservation Center, they hope to have the "Hunley" project completed by 2020.  Since the "Hunley" was located in 1995 and recovered from the ocean in 2000, a team of conservators from the Lasch Conservation Center has been working to restore the "Hunley".  The "Hunley", the first combat submarine to successfully complete its mission, has been at the Lasch Conservation Center for over 15 years while scientist and conservators formulate a plan for its restoration.  Once the "Hunley"s conservation and restoration is complete it will be relocated to a new museum built in its honor on the former Navy base in North Charleston.  Currently visitors can tour the conservation center laboratories and can view the "Hunley" in its 75,000 gallon tank.

Pakistan Crane Center, Lakki Marwat: Crane Conservation Center and Wildlife Park, Lakki Marwat is a conservation center for the captive breeding of various types of wild birds and animal species.  It is located west of Kurram River in Lakki Marwat, Khyber Pakhtunkhwa, Pakistan, 250 km south of Peshawar.  It was established in 2007.  The center is equipped with a total of 15 circular aviaries and 20 cages as well as an education block for visitors.  The center is now maintained and operated by Khyber Pakhtunkhwa Wildlife Department through the Bannu Wildlife Division, Bannu while its establishment was funded by WWF - Pakistan, GEF, UNDP and Darwin Initiative.  A "Range Officer" of the wildlife department manages and co-ordinates the activities of the park.  A wildlife vet, Dr. Adnan Khan , frequently visits the center in order to maintain healthy stock.

H. L. Hunley (submarine): H. L. Hunley, often referred to as Hunley, was a submarine of the Confederate States of America that played a small part in the American Civil War.  "Hunley" demonstrated the advantages and the dangers of undersea warfare.  She was the first combat submarine to sink a warship, although "Hunley" was not completely submerged and, following her successful attack, was lost along with her crew before she could return to base.  The Confederacy lost 21 crewmen in three sinkings of "Hunley" during her short career.  She was named for her inventor, Horace Lawson Hunley, shortly after she was taken into government service under the control of the Confederate States Army at Charleston, South Carolina.

National Trust for Nature Conservation: The National Trust for Nature Conservation (NTNC), (राष्ट्रिय प्रकृति संरक्षण कोष) previously known as King Mahendra Trust for Nature Conservation is a Nepalese non-governmental organization working in the field of nature conservation. It was established in 1982 as an autonomous non profit organization by legislative law of Nepal.  NTNC's mission is to conserve nature and natural resources in Nepal while meeting the needs of the people in sustainable way.  Geographically, the Trust activities have spread from the sub-tropical plains of Chitwan, Bardia and Kanchanpur in the lowlands to the Annapurna and Manaslu region of the high Himalayas, including the trans-Himalayan region of Upper Mustang and Manang.  Currently, the projects of Trust are divided into three geographical areas - the lowland, the mid-hills (Kathmandu Valley) and the high mountains.  The Trust’s activities in the lowlands are based in and around the Chitwan National Park, the Bardia National Park and the Shuklaphanta Wildlife Reserve located in the central, western and far-western development regions of Nepal, through the Biodiversity Conservation Center (BCC) in Chitwan, the Bardia Conservation Program (BCP) in Bardia and the Suklaphanta Conservation Program (SCP) in Kanchanpur.  Similarly, the Annapurna Conservation Area Project (ACAP), the Manaslu Conservation Area Project (MCAP) and Gaurishankar Conservation Area Project (GCAP) are three protected areas managed by the Trust in the mountain region.  The Central Zoo is the only project of the Trust in Kathmandu Valley.  As a new initiative, the Trust has established an Energy and Climate Change Unit to address the emerging issues of climate change through mitigation and adaptation approach and renewable energy technologies.  The Trust has also started work on urban environment conservation with the Bagmati River Conservation Project.

Victoria Blyth Hill: Victoria Blyth Hill (November 17, 1945 – April 20, 2013) was an American art conservator who lived and worked in the Venice area of Los Angeles.  She retired from the Los Angeles County Museum of Art as the Director, Conservation Center in June 2005 when she was honored with an appointment as Senior Conservator Emeritus at the Los Angeles County Museum of Art (LACMA).  Subsequently she worked with private clients, including artists, individuals, and museums, and operated an art conservation studio near her home.  She was a past president of the Western Association for Art Conservation (1979).  Blyth-Hill was elected Fellow of the American Institute for Conservation of Historic and Artistic Works (AIC) in 1990.

Supporting paragraphs: Warren Lasch Conservation Center H. L. Hunley (submarine)
Answer: the American Civil War