September 1942 marked the high point of Axis conquest in World War II. In the Pacific, Japan's soldiers had seemed unstoppable. However, the tide was about to turn. On Sunday, 6 September 1942, Japanese land forces suffered their first conclusive defeat at the hands of the Allies. At Milne Bay in Papua New Guinea, a predominantly Australian force - including 75 Squadron (fresh from their action in 44 Days) - fought for two weeks to successfully defend a vital airstrip against a determined Japanese invasion.

From the shores of Cape Gloucester to the quiet atolls and islands of the Solomon Sea, the Second World War left a profound mark on this sheltered corner of the globe, which would be felt for decades to come. Caught in the center of a vicious struggle between two superpowers, these islands would form an unconventional battleground for the US Marines and the Japanese Navy.

When the Second World War broke out in September 1939, the British asked Australia for help. With some misgivings, the Australian government sent five destroyers to beef up the British Royal Navy in the Mediterranean. HMAS Vendetta, Vampire, Voyager, Stuart and Waterhen were old ships, small with worn-out engines. Their crews used to joke they were held together by string and chewing gum; when the Nazi propaganda minister Josef Goebbels heard of them, he sneered that they were a load of scrap iron.

In 1854, Victorian miners fought a deadly battle under the flag of the Southern Cross at the Eureka Stockade. Though brief and doomed to fail, the battle is legend in both our history and in the Australian mind. Henry Lawson wrote poems about it, its symbolic flag is still raised, and even the nineteenth-century visitor Mark Twain called it: "a strike for liberty". Was this rebellion a fledgling nation’s first attempt to assert its independence under colonial rule? Or was it merely rabble-rousing by unruly miners determined not to pay their taxes?

World War II is usually seen as a titanic land battle, decided by mass armies, most importantly those on the Eastern Front. Phillips Payson O'Brien shows us the war in a completely different light. In this compelling new history of the Allied path to victory, he argues that in terms of production, technology, and economic power, the war was far more a contest of air and sea than of land supremacy.