A Regiment is a term for an organization within the army. And the organization of the Army has changed over the years and for various countries.
During WW2 the US Infantry Regiment consisted of 3 Battalions of 4 Companies each. There were 3 Regiments within an Infantry Division and including artillery, engineers and support personnel, the infantry division contained 15,000 men. The infantry battalion was the basic unit that operated in the field and was commanded by a Colonel. Regiments were numbered units. The division was identified by a Number and a cloth shoulder patch.
In the Civil War, a regiment was about 1000 men, but most were smaller. After a few battles their size would be reduced to less than 400. The Regiments were the basic unit and were identified by a number and their state. Thus there were units such as 20th Maine Regiment or 54th New York Regiment or sometimes more elaborate names, such as Volunteer Regiment. Regiments were formed into a Brigade, which was the basic unit that fought in the field.
Pakistan Army Regiment of Artillery was created in 1947.
Sri Lanka Army Commando Regiment was created in 1980.
US ARMY Army Group Army Corps Division Regiment Battalion Company Platoon Squad
The motto of Sri Lanka Army Commando Regiment is 'Nothing is Impossible'.
Sri Lanka Army Special Forces Regiment was created in 1986.
You should only join the British Army regiment that you think is best to suit your life.
The soldiers know for the use of the khukri belong to the Gurkha Regiment. These soldiers are from Nepal not India and form their own regiment in the British Army.
The Gurkha Regiment
Different in some countries. In British Army about 850 men in a regiment.
the lifeguards
I would assume that is the Army. My Grandfather was in the Army in the 1333rd Engineer General Service Regiment.
the paratroop regiment are an elite forces regiment of the british army who go in via planes and parachute down hence the word "para"