the benefit of present and future generations, the nationally significant historic resources of Camp Nelson and the role of Camp Nelson in the American Civil War, Reconstruction, and African American history and civil rights. (2) Conditions The Monument shall not be established until after the Secretary— (A) has entered into a written agreement with the owner of any private or non-Federal land within the boundary of the Monument, as depicted on the Map, providing that the property shall be donated to the United States for inclusion in the Monument, to be managed consistently with the purposes of the Monument