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5,000 Soldiers. A brigade consists of a few battalions and anywhere from 3,000 to 5,000 soldiers. A colonel is generally in command. For historical reasons, armor and Ranger units of brigade size are called regiments, and the equivalent Special Forces units are called groups.
Two or more platoons make up a company, which has 100 to 250 soldiers and is commanded by a captain or a major. The function of administration is introduced at this level, in the form of a headquarters platoon administered by a sergeant and containing supply, maintenance, or other sections.
The man who was in charge of a century of infantry soldiers (80 soldiers) was called a centurion. The man who was in charge of a turma of cavalry soldiers (30 soldiers) was called a decurion.
It was divided up into groups called 'legions'. Each legion had between 4,000 and 6,000 soldiers. A legion was further divided into groups of 80 men called 'centuries'. The man in charge of a century was known as a 'centurion'.
A legion was nominally composed of 6,000 soldiers, and each legion was divided up into 10 cohorts, with each cohort containing 6 centuria. The centurion thus nominally commanded about 100 men, and there were 60 centurions in a legion.
The Roman army was divided into legions of about 5,000 men. Contubernium: consisted of 8 men. Centuria: (century) was made up of 10 contubernium with a total of 80 men commanded by a centurion. Cohorts: (cohort) included 6 centurie, a total of 480 men.
A U.S. Army battalion includes the battalion commander (lieutenant colonel), executive officer (major), command sergeant major (CSM), headquarters staff and usually three to five companies, with a total of 300 to 1,000 (but typically 500 to 600) soldiers.
In most military forces the cavalry equivalent and aviation equivalent of the battalion is the squadron. In the U.S. Army of the early years of the 20th century, a battalion usually numbered from 500 to 1,000 men and was normally commanded by a lieutenant colonel.
Squad. A small military unit consisting of ten to eleven soldiers, normally led by a staff sergeant. Platoon. A platoon is four squads: generally three rifle squads and one weapons squad, normally armed with machine guns and anti-tank weapons.
A legion was a group of soldiers—as many as 6,000. Legions of 6,000 soldiers were divided into groups called centuries, which had 100 soldiers.
Platoon organization varies depending on the country and the branch, but a platoon can be composed of 20–50 troops, although specific platoons may range from 10 to 100 people. A platoon is typically the smallest military unit led by a commissioned officer.
brigade. noun. a large group of soldiers, larger than a battalion.
Brigade. This is a formation consisting of three infantry battalions or three cavalry or armoured regiments. During the world wars a brigade numbered between 3,500 and 4,000 soldiers.
A field army is the U.S. Army's largest unit structure (50,000 and more soldiers).
Until the middle of the first century AD, ten cohorts made up a Roman legion. This was later changed to nine cohorts of standard size (with six centuries at 80 men each) with the first cohort being of double strength (five double-strength centuries with 160 men each).
In the days of the early republic, each legion was 4,200 men, expanding to 5,000 men in times of particular peril. After the Marian Reforms and during the Principate period of the Roman empire, each legion numbered approximately 5,200 men, sometimes rising to 6,000.
Most BTGs have between 700–800 personnel, but a few have around 900. Aside from units regularly attached to the BTG in garrison, a BTG may have additional units attached as required.
A cavalry is a group of soldiers who fight on horses.
With a strength of over 18,000 soldiers and four hundred helicopters, the 101st Airborne (Air Assault) Division remains one of the most powerful military units in the world.
The squadron is the basic tactical and administrative unit. One or more squadrons form a group, and one or more groups form a wing.
When at full strength, an infantry regiment normally comprised two field battalions of about 800 men each or 8–10 companies. In some armies, an independent regiment with fewer companies was labelled a demi-regiment. A cavalry regiment numbered 600 to 900 troopers, making up a single entity.
Each legion consisted of 4,200–5,000 infantry and 300 cavalry, while the allied units had an equal number of infantry but three times as many cavalry (900 cavalry per unit). The complete total, therefore, sums to around 80,000 infantry and 10,000 cavalry.
Legio XIII Gemina, in English the 13th Twin Legion was a legion of the Imperial Roman army. It was one of Julius Caesar's key units in Gaul and in the civil war, and was the legion with which he crossed the Rubicon in January, perhaps the 10th, 49 BC.
Also, while Spartacus was a real person who has inspired revolutionaries and filmmakers, scholars do not have an abundant amount of information about him. Accounts from only about a dozen ancient writers survive to this day, and none of the surviving reports was written by Spartacus or one of his supporters.