What is Empires of the Sea about?

Empires of the Sea is Roger Crowley's account of the Ottoman Empire's bid to control the Mediterranean in the sixteenth century, culminating in the Battle of Lepanto in 1571. It covers roughly thirty years of intermittent but ferocious naval warfare between the Ottoman Empire under Suleiman the Magnificent and his successors, and the fragmented Christian powers of the western Mediterranean — primarily Spain under Philip II, Venice, and the Knights of St. John. The book is narrative history at its most sustained: Crowley is primarily interested in events and people, and he maintains forward momentum across complex strategic terrain.

The centerpiece is the Great Siege of Malta in 1565, which occupies roughly a third of the book. The Ottoman fleet, the largest assembled in the Mediterranean since antiquity, landed on Malta to dislodge the Knights of St. John — a crusading military order that had been harassing Ottoman shipping and enslaving Muslim sailors. The siege lasted four months, cost tens of thousands of lives on both sides, and ended with a narrow Christian defense. Crowley reconstructs the daily experience of the siege — the tunneling, the bombardment, the running out of food and fresh water — without losing the strategic stakes. The commanders on both sides, particularly the Knight Jean de la Valette and the Ottoman admiral Dragut, are drawn with the specificity that sustained archival research allows.

The book then follows the story to Cyprus, which the Ottomans took from Venice in a brutal campaign in 1570, and to Lepanto the following year, where a combined Christian fleet under Don John of Austria handed the Ottomans their first major naval defeat in a century. Crowley is careful to complicate the idea of Lepanto as a decisive turning point — the Ottomans rebuilt their fleet within a year — but he gives full weight to its psychological impact on both sides and its meaning for how the two empires would thereafter understand each other.

Crowley's strength is pace and specificity: he writes military history that does not flatten experience into strategy, and strategic history that does not lose sight of the political and religious context. Readers looking for deep analysis of the social or economic structures underlying the conflict will find the coverage thinner; Empires of the Sea is a book about what happened and how, told vividly, rather than an attempt to explain the deeper forces driving it.