In the Mean Time2020 Choice Outstanding Academic Title The 1848 Treaty of Guadalupe Hidalgo, which transferred more than a third of Mexicos territory to the United States, deferred full U. S. citizenship for Mexican Americans but promised, in the mean time, to protect their property and liberty. Erin Murrah Mandril demonstrates that the U. S. government deployed a colonization of time in the Southwest to insure political and economic underdevelopment in the region