Corporal (2 chevrons) is right below Sergeant (3 chevrons).
The rank of Sargeant has the insignia of three downward-pointing chevrons.
If you are referring to the triangular stripes on the arm of a uniform, it means that the soldier's rank would have been Sergeant. We call these stripes Chevrons. Some chevrons have a curve at the bottom. We call these Rockers.Others contain a lozenge (diamond) or a star in the middle. Chain of Command Ranks using Chevrons and Rockers to indicate rank are as follows: * Private, indicated by one chevron * Private First Class, indicated by one chevron with one rocker * Corporal, indicated by two chevrons * Sergeant, indicated by three chevrons * Staff Sergeant, indicated by three chevrons and one rocker * Sergeant First Class, indicated by three chevrons and two rockers * Master Sergeant, indicated by three chevrons and three rockers * First Sergeant, indicated by three chevrons, three rockers, and lozenge. * Sergaent Major, indicated by a star in the midddle of the chevrons and rockers. This position is appointed. * Command Sergeant Major, indicated by a winged star in the middle of the chevrons and rockers. This position is appointed. * Sergeant Major of the Army, indicated by an eagle flanked by two stars. This position is not combat oriented. Three stripes was the rank of a sergeant. A Private wore no stripes, a private first class had one stripe, and a corporal had two stripes.
AFI 36-2903 para. 5.1.1.2. Enlisted Rank Insignia. Enlisted Airmen will wear rank on the sleeves, 4-inch chevrons for men; 3 ½ inch or 4 inch chevrons for women. Chevrons will be centered on the outer arm halfway between the elbow and shoulder seam, when bent at a 90-degree angle. If sleeves are rolled up, chevrons do not need to be fully visible; however, rank must be distinguishable
All military chevrons point vertical it originated during ancient times when only males were allowed to be in the military. The chevron is a representation of the male penis signifying war was for males only. The higher your rank the more chevrons indicating the more manly and better warrior u were.
Two stripes in the Marine Corps was a Corporal aka E-4.A similar rank, (Two Chevrons), in the Army was Corporal Grade 5.In 1942 the Army added two Chevrons with a T below. It was called Tech 5th Class, Grade 5.The Navy equivalent is called "Rate," instead of rank. It's signified by two angled slashes. (Seaman Apprentice or E-2)
Tech 4 was a WWII US Army rank, for men trained in technical specialties, such as radio men, mechanics and so on. It was the same pay grade as a buck sergeant, and the holders of the rank were usually called "sergeant". The insignia of the rank was three chevrons, just like a buck sergeant, but below the chevrons there was a capital "T".
The rank of sergeant is denoted by three chevrons on the sleeve of the DPCU uniform (old style) or in the rank-slot on the front of the new design uniform.
Citreon
The rank insignia for a First Class is an Eagle over 3 Chevrons, with the person's rating insignia between them. For collar devices, it's just the Eagle over the Chevrons.
gunnery sergeant... abbreviated GySgt
It's essentially Corporal chevrons (two stripes), with a letter "T" underneath. See related link for a visual.