Second Lieutenant is an official military rank that denotes a person responsible for leading a platoon or a unit of soldiers. There are various synonyms for the term Second Lieutenant depending on which country's military you are in. In the United States Armed Forces, the same rank is referred to as Lieutenant, while in the UK Armed Forces, it is referred to as Sub-Lieutenant. Other synonyms for second lieutenant include Leutnant in Germany, Podporučík in the Czech Republic, and Alferez in Spain. These titles are typically used in their respective countries' military structures, with each rank possessing different responsibilities and duties. Regardless of the name, though, each Second Lieutenant plays an essential role in the military and is expected to lead with honor and integrity.