What is war, and what is not war? Who in Heaven's name defines a war and names it? Have we all been fighting in wars in our life, or have the wars only been fought among the warlords? We will ask a lot of questions to ourselves, and by the time the last volume of this series is read, most of the questions will have been answered. We will discuss to know what war's meant to us in both small and large scales. We will learn in detail about the patterns of wars in the past and what they will look like in our time in the coming years. We will see that simple changes in tactics of war have always been the decisive causes of the very changes of our global orders after all. The first volume starts with the ancient ground force evolution based on a tiny piece of new horse gear called stirrup so as to learn how it built so-called the Middle Ages under feudalism famed for chivalry, faith and romance. Second volume is about the development of various shooting maneuvers later to fit perfectly in the naval operations for the global expedition to create our modern world where we live today. And the third is war and geopolitics while the last volume tries to picture the future conflicts in the coming years. We will not just learn the cliche of art of war in our history that everybody's been talking so much about, but also the very causes of tragic conflicts with such abundance of colorful image assistance that will entertain our eyes. After we are done with this series, our world we know will be larger than ever before with less misunderstanding about other societies in different languages and appearances, which has always been one of the biggest causes of the restless conflicts of our world. We also hear about some stories of good military leaders who have lived among the people through the hardest moment in their life.