Sub-lieutenant
Sub-lieutenant - is a junior officer rank used in armies, navies, and air forces. In most armed forces hierocracy, the sub-lieutenant is the lowest officer rank.
In France, a sub-lieutenant is a junior commissioned officer in the army or the air force. He wears a band in the color of his corps (e.g., gold for infantry, silver for armored cavalry, etc.). During the 18th century, the rank of sous-lieutenant de vaisseau existed in the French Navy.[Lavery, Brian]
An Argentinian sub-lieutenant wears a single silver sun on each shoulder. Brazilian sub-lieutenants are the most senior non-commissioned rank (called Sub-Officer in the Navy and Air force), wearing a golden lozenge. In Mexico, the sub-lieutenant is the most junior officer in the rank scale and wears a single gold bar. Thai sub-lieutenants and acting sub-lieutenants wear a single star on each shoulder.[Lewis, Michael]
Lavery, Brian (1989). Nelson's Navy: The Ships, Men, and Organization. Annapolis: Naval Institute Press.
Lewis, Michael (1939). England's Sea Officers. London: Unwin.