Few episodes in Texas history have excited more popular interest than the Mier Expedition of 1842. Nineteen-year-old Joseph D. McCutchan was among the 300 Texans who, without the cover of the Lone Star flag, launched their own disastrous invasion across the Rio Grande. McCutchan's diary provides a vivid account of his experience--the Texans' quick dispatch by Mexican troops at the town of Mier, the hardships of a forced march to Mexico...