What is a Sub-Lieutenant?

A sub-lieutenant is a junior commissioned officer rank in the armed forces of many countries. It is typically the most junior rank of commissioned officer, and is above the rank of ensign or cadet, and below the rank of lieutenant.

In some countries, the rank of sub-lieutenant is also known as "junior lieutenant" or "second lieutenant". The rank insignia for a sub-lieutenant usually consists of two bars or stripes on the shoulder straps or sleeves, with a single star or crown in the center.

The responsibilities of a sub-lieutenant can vary depending on the country and the branch of service, but generally include leading a small team of soldiers or sailors, supervising training and operations, and serving as a staff officer. Sub-lieutenants are also often responsible for maintaining discipline and order within their unit, and for ensuring that their subordinates are properly trained and equipped for duty.