Within a seven-hour period in early December 1941, the Japanese armed forces moved against Pearl Harbor, the Philippines, Wake Island, Hong Kong and - the most formidable objective of all - the Malaya Peninsular and its 'Gibraltar of the East', the city-fortress of Singapore. By the end of the 100-day campaign, a British Empire army of 130,000 had been wiped off the map by a Japanese force of 60,000 men. Col. Masanobu Tsuji was the staff officer charged with quickly developing techniques for fighting in the tropics once the Japanese had decided on an aggressive war. He accompanied the attacking spearheads as they slashed down the peninsula until the British had been confined in Singapore itself. Thereafter, the Japanese broke into the 'impregnable' fortress and concluded one of the most impressive offensives of the modern era. This book is a remarkable insider's account of the Japanese on the move, and at the height of their power.