When he left his Spanish base one spring day in 218 B.C. with his 100,000-man army of mercenaries, officers, and elephants, Hannibal was launching not just the main offensive of the Second Punic War but also one of the great military journeys in ancient history. His masterful advance through rough terrain and fierce Celtic tribes proved his worth as a leader, but it was his extraordinary passage through the Alps--still considered treacherous even by modern climbers--that made him a legend. John Prevas combines rigorous research of ancient sources with his own excursions through the icy peaks...

The year is 403 B.C. The Athenian philosopher Xenophon finds himself with an army of Greeks marching to what is now Turkey. Their mission: to aid the Persian pretender Cyrus in a war against his brother Artaxerxes. At a great battle, Cyrus is killed and his army destroyed--except for the Greeks holding his right flank. Xenophon and the Greeks are now stranded in the heart of the Persian Empire, outnumbered a hundred to one. The story of Xenophon's march to escape the Persian noose is an intensely personal and human tale, replete with clashes of arms and desperate hardships. It is also the...