What to read after On War?

Translated into English several times as On War. Vom Kriege (German pronunciation: [fɔm ˈkʁiːɡə]) is a book on war and military strategy by Prussian general Carl von Clausewitz (1780-1831), written mostly after the Napoleonic wars, between 1816 and 1830, and published posthumously by his wife Marie von Brühl in 1832. On War is the most significant attempt in Western history to understand war, both in its internal dynamics and as an instrument of policy. Since the work's first appearance in 1832, it has been read throughout the world, and has stimulated generations of soldiers, statesmen, and intellectuals. TABLE OF CONTENTS: THE INTRODUCTION OF THE AUTHOR BRIEF MEMOIR OF GENERAL CLAUSEWITZ BOOK I. ON THE NATURE OF WAR BOOK II. ON THE THEORY OF WAR BOOK III. OF STRATEGY IN GENERAL BOOK IV. THE COMBAT