Without the aircraft carrier, the Japanese would not have brought the United States into the Second World War through their attack on Pearl Harbour; without the carrier, the United States could not have rolled back the Japanese forces spread across the wide reaches of the Pacific and carried the war to Japan itself. Thus is can be argued that aircraft carriers were the decisive naval weapons system of the Second World War. Yet they had an uncertain start, with HMS Courageous sunk two weeks after the outbreak of war, followed by her sister, Glorious the following spring. This book is an authoritative, concise and hugely readable account of carrier operations throughout WW2. The text is given immediacy by the use of eyewitness accounts.