Army National Guard units with campaign credit for the War of 1812 on April 5, 1807, as the 3rd Regiment of Artillery. The four aforementioned companies were reorganized and redesignated on August 25, 1808, as the 2nd Battalion, 3rd Regiment of Artillery, which was reorganized and redesignated as the 2nd Battalion, 11th Regiment of Artillery on June 13, 1812. This regiment was mustered into federal service twice during the War of 1812: September 15, 1812, through December 15, 1812, and September 2, 1814, through December 2, 1814. During its first period of federal service, the 2nd Battalion, 11th Regiment was stationed on Ellis Island and Bedloe Island (later renamed Liberty Island); during
USNS Observation Island (T-AGM-23) USNS Observation Island (T-AGM-23) USNS "Observation Island" (T-AGM-23) was built as the Mariner-class merchant ship "Empire State Mariner" for the United States Maritime Commission, launched 15 August 1953, and operated by United States Lines upon delivery on 24 February 1954, making voyages for the Military Sea Transportation Service (MSTS) until going into reserve at Mobile, Alabama on 9 November 1954. Title was transferred to the United States Navy on 10 September 1956 and, after conversion, the ship was renamed "Observation Island". On commissioning the ship was classified as the "experimental miscellaneous auxiliary" (EAG), USS "Observation Island" (EAG-154) supporting fleet ballistic