First System of US seacoast defense

Target entity: First System of US seacoast defense
Context triple: [Second System of US seacoast defense, follows, First System of US seacoast defense]

• A. Second System of US seacoast defense
  The Second System of US seacoast defense was an early 19th-century coastal fortification program that replaced the initial ad hoc defenses with more standardized, permanent works to protect major American ports and harbors.
• B. Third System of US seacoast defense
  The Third System of US seacoast defense was a 19th-century American coastal fortification program that constructed large, permanent masonry forts to protect key harbors and strategic points along the nation’s shoreline.
• C. United States seacoast defense systems
  United States seacoast defense systems were a series of evolving coastal fortifications and armaments designed to protect the nation’s harbors and shorelines from naval attack.
• D. Endicott Period coast defenses
  Endicott Period coast defenses were a late 19th- and early 20th-century modernization of United States coastal fortifications featuring reinforced concrete batteries, disappearing guns, and updated artillery to protect major harbors.
• E. Confederate coastal defenses
  Confederate coastal defenses were a network of fortifications, artillery batteries, and supporting installations built by the Confederate States during the American Civil War to protect key ports, harbors, and shorelines from Union naval attacks.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: First System of US seacoast defense
Target entity description: The First System of US seacoast defense was the early post-Revolutionary War program of coastal fortifications built to protect key American ports and harbors from naval attack.

• A. Second System of US seacoast defense
  The Second System of US seacoast defense was an early 19th-century coastal fortification program that replaced the initial ad hoc defenses with more standardized, permanent works to protect major American ports and harbors.
• B. Third System of US seacoast defense
  The Third System of US seacoast defense was a 19th-century American coastal fortification program that constructed large, permanent masonry forts to protect key harbors and strategic points along the nation’s shoreline.
• C. United States seacoast defense systems
  United States seacoast defense systems were a series of evolving coastal fortifications and armaments designed to protect the nation’s harbors and shorelines from naval attack.
• D. Endicott Period coast defenses
  Endicott Period coast defenses were a late 19th- and early 20th-century modernization of United States coastal fortifications featuring reinforced concrete batteries, disappearing guns, and updated artillery to protect major harbors.
• E. Confederate coastal defenses
  Confederate coastal defenses were a network of fortifications, artillery batteries, and supporting installations built by the Confederate States during the American Civil War to protect key ports, harbors, and shorelines from Union naval attacks.
• F. None of above. chosen