The 12 Coast Artillery Regiment is a military unit within the United States Army. Established in 1901, it has a rich history of providing coastal and harbor defense capabilities. Originally formed to protect the U.S. coastline from seaborne threats, its mission has evolved to include various roles such as missile defense, air defense, and command and control operations. Throughout its existence, the 12 Coast Artillery Regiment has been deployed in numerous conflicts, demonstrating its adaptability to changing military needs. The regiment is headquartered at Fort Sill, Oklahoma, and falls under the jurisdiction of the United States Army Field Artillery Branch.