THE INFANTRY - THE ONLY REASON FOR THE EXISTENCE OF REST OF THE ARMY
Without doubt the infantry is the main reason for the existence of the Army. It is they who take and hold the ground with the rest of the Army in close support (Teeth Arms such as the Armoured Corps and Artillery) and Support Arms such as Logistics and Administrative/Police/Intelligence units)
Here are links to some thoughts on what it means to be an Infantryman, a Highland warrior.
OTHER NATIONS' THOUGHTS ON THE INFANTRY
THE RIFLEMAN BY GENERAL OMAR BRADLEY US ARMY