This chapter takes us from the global perspective of the previous chapter to a more hemispheric or binational perspective that examines a series of expulsions that occurred in the lead up to the Mexican American War and then continued throughout the latter half of the nineteenth century. As such, I will not be discussing the coming or process of the war per se, only one manifestation of this event, which shaped the formation of Mexican immigration and colonization policy, particularly for populations outside of state control. Specifically, this chapter also examines a brief history of early nineteenth century expulsions at a moment when immigration policy came face to face with military concerns. Repatriates, especially those expelled from Texas and California, were not only recommended as ideal colonists for the fractured republic, but seen as the most obvious choice for this particular line of defense . “There can certainly be no better colonists for our borders,” at least according to General Bonilla of Mexico’s Ministry of War and Marine, than those “instructed with hard experience, as well as with the falsehood of encouraging promises that the Americans are used to making . . . .” Mexicans in the United States, the thinking went, would be more anti-American precisely because of their “intimate contact” with Euro Americans.