Between 1861 and 1865, the clash of the greatest armies the Western hemisphere had ever seen turned small towns, little-known streams, and obscure meadows in the American countryside into names we will always remember. In those great battles, those streams ran red with blood-and the United States was truly born.

This fresh and challenging inquiry into human societies takes a deep look at the effects and roles of war. As the most complex of all human endeavors, warfare - from ancient to modern - has spurred the growth of essential new technologies; demanded the adoption of complex economic systems; shaped the ideology and culture of nations; promoted developments in art and literature; and spread faith across the globe.

Military history often highlights successes and suggests a sense of inevitability about victory, but there is so much that can be gleaned from considering failures. Study these crucibles of history to gain a better understanding of why a civilization took - or didn't take - a particular path.

From Napoleon's revolutionary campaigns to the way insurgency, terrorism, and nuclear weaponry have defined the nature of warfare in the 21st century, the results of military strategy have changed the course of history. These 24 thought-provoking lectures give you an inside look at both the content and historical context of the world's greatest war strategists. From the triremes and hoplites of ancient Greece to the Special Forces in 21st-century Afghanistan, strategy is the process by which political objectives are translated into military action.

Mutiny. Disease. Starvation. Cannibals. From the ancient wayfarers to modern astronauts, world explorers have blazed trails fraught with danger. Yet, as History's Greatest Voyages of Exploration vividly demonstrates, exploration continues to be one of humanity's deepest impulses. Across 24 lectures that unveil the process by which we came to know the far reaches of our planet, you'll witness the awe-inspiring and surprisingly interconnected tale of global exploration.

What were the forces that thrust the British Empire to its extraordinary position of greatness and then just as powerfully drove it into decline? And why is nearly every nation on earth, in one way or another, the consequence of the British Empire?In these 36 lectures, Professor Allitt leads you through four centuries of British power, innovation, influence, and, ultimately, diminishment-four profound centuries that literally remade the world and bequeathed the complex global legacy that continues to shape your everyday life.

In the 6th century AD, the Near East was divided between two venerable empires: the Persian and the Roman. A hundred years on and one had vanished forever, while the other seemed almost finished. Ruling in their place were the Arabs: an upheaval so profound that it spelt, in effect, the end of the ancient world. In The Shadow of the Sword, Tom Holland explores how this came about.

The Sleepwalkers: How Europe Went to War in 1914 is historian Christopher Clark’s riveting account of the explosive beginnings of World War I. Drawing on new scholarship, Clark offers a fresh look at World War I, focusing not on the battles and atrocities of the war itself, but on the complex events and relationships that led a group of well-meaning leaders into brutal conflict.

The Middle East is a critically important area of our world. And, with its current prominence in international affairs, media images of the Middle East reach us on a daily basis. Much media coverage, however, is incomplete at best, failing to take account of either the complexities or the historical background of this pivotal region. For most of us, the real story of the Middle East remains untold. What made this crucial geopolitical area what it is today?

Touched off by a terrorist act in Bosnia and spreading all too quickly beyond the expectations of those who were involved, World War I was an unprecedented catastrophe with a ghastly cost. After this first "total war"-the first conflict involving entire societies mobilized to wage unrestrained war, devoting all their wealth, industries, institutions, and the lives of their citizens to win victory at any price - the world itself would never be the same.