The Mechanised Infantry is the newest combat arm of the Indian Army. Often referred to as "tomorrow's arm in today's army", it is formed of two regiments—The Brigade of the Guards and Mechanised Infantry Regiment—and comprises 48 Mechanised Infantry battalions in all. It is the brainchild of General Krishnaswamy Sundarji (28 April 1930 – 8 February 1999), who was the Chief of Army Staff of the Indian Army from 1986 to 1988. During the late 70s, as part of Indian Army modernisation, there was an urgent need to re-calibrate the Indian Mechanised Forces, which led to the forming of Mechanised Infantry units to further the shock-action, fire-power, flexibility, and mobility of armoured formations by including ground-holding ability. The Mechanised Infantry regiments were first created with carefully selected existing Infantry battalions, based on their operational performance. As the need for more mechanised battalions grew, the elite Brigade of The Guards were also converted to the mechanised profile. The two regiments along with the Armoured Corps form part of the Indian Army's elite "Mechanised Forces".