Second lieutenant is an officer rank in the US Military. They are called commissioned officers, and are the lowest officer rank.
In the Marine Corps, Army, Air Force, and Space Force, second lieutenants are junior officers. They command a group of around 20-50 soldiers, marines, airmen, or guardians.
In the Navy and Coast Guard, Second Lieutenants are called Ensigns.
In 2024, second lieutenants are payed a minimum of 45'912 USD per year.[1]