A nation's army comprises of its various regiments and their gallant soldiers, who have time and again stood between the enemy and the people of the country and defended their honour and their right to live independently. And when it comes to the Indian Army, the 4/19 Hyderabad Regiment (now known as the 4 Kumaon) will forever be entrenched in history as perhaps the most enigmatic of all the founding regiments of the country's armed forces. Brigadier Jasbir Singh's Combat Diary enlists the history, the wars, the achievements and the various accomplishments of the 4/19 Hyderabad Regiment and brings to the common reader a picturesque account of a glorious regiment. Little does it surprise us that the nation's first Param Vir Chakra winner was from this very regiment. Right from the time when the regiment was formed as a part of the Nawab of Hyderabad's illustrious army, through the various campaigns in the two World Wars under British rule in India, the 4/19 Hyederabad Regiment has a story to tell.