The Runaway Scrape events took place mainly between September 1835 and April 1836 and were the evacuations by Texas residents fleeing the Mexican Army of Operations during the Texas Revolution, from the Battle of the Alamo through the decisive Battle of San Jacinto. The ad interim government of the new Republic of Texas and much of the civilian population fled eastward ahead of the Mexican forces. The conflict arose after Antonio López de Santa Anna abrogated the 1824 Constitution of Mexico and established martial law in Coahuila y Tejas. The Texians resisted and declared their independence. It was Sam Houston's responsibility, as the appointed commander-in-chief of the Provisional Army of Texas, to recruit and train a military force to defend the population against troops led by Santa Anna.

The Texas Revolution was a rebellion of colonists from the United States and Tejanos against the centralist government of Mexico in the Mexican state of Coahuila y Tejas. Although the uprising was part of a larger one, the Mexican Federalist War, that included other provinces opposed to the regime of President Antonio López de Santa Anna, the Mexican government believed the United States had instigated the Texas insurrection with the goal of annexation. The Mexican Congress passed the Tornel Decree, declaring that any foreigners fighting against Mexican troops "will be deemed pirates and dealt with as such, being citizens of no nation presently at war with the Republic and fighting under no recognized flag". Only the province of Texas succeeded in breaking with Mexico, establishing the Republic of Texas. It was eventually annexed by the United States.