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How long was the Burma Railway route?

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Map showing the height of Japanese territorial expansion in 1942 during World War II, with a large hatched area covering much of East and Southeast Asia and the western Pacific, including parts of China, Korea, Southeast Asia, the Philippines, and numerous Pacific islands. Japan's home islands are shaded in solid red, while the expansion area stretches from India and Burma in the west to the Aleut — Burma Railway In World War II Japanese military forces quickly took advantage of their success at Pearl Harbor to expand their holdings throughout the Pacific and westward toward India. This expansion continued relatively unchecked until mid-1942. Then, after losing the Battle of Midway, Japan was forced on the defensive.

The Burma Railway, constructed during World War II to connect Ban Pong, Thailand, and Thanbyuzayat, Burma, spanned approximately 258 miles (415 km) of track.1