Artillery - Officer - 1st Lt Phone Case

First lieutenant is a commissioned officer military rank in many armed forces and, in some forces, an appointment. The rank of lieutenant has different meanings in different military formations, but the majority of cases it is common for it to be sub-divided into a senior (first lieutenant) and junior (second lieutenant) rank. The NATO equivalent rank for land force officers is OF-1 rank. In navies, while certain rank insignia may carry the name: "lieutenant", the term may also be used to relate to a particular post or duty, rather than a rank.