A focused military account of the defense of a small Pacific atoll during the outbreak of hostilities, following Marines, aviators, and civilian personnel as they scramble to fortify positions, disperse aircraft, and man coastal and antiaircraft batteries. It follows the chronology of reconnaissance flights and aerial raids, the employment of 5-inch and 3-inch guns, and the challenges of limited personnel, equipment, and early-warning capabilities. Interleaved sidebars profile key commanders, weapons, and notable episodes of leadership and tactical action during the siege.