𝐔𝐍𝐈𝐓𝐄𝐃 𝐒𝐓𝐀𝐓𝐄𝐒 𝐌𝐈𝐋𝐈𝐓𝐀𝐑𝐘 𝟏𝟗𝟔𝟎'𝐬 The United States Navy is the maritime service branch of the United States Military and the most powerful Navy in the world. The United States Navy is headed by the Chief of Naval Operations and are currently participating in the ongoing conflict in Vietnam. Enlist in the Navy today to liberate the North and bring and end to the conflict.