"(188) New Mexico experienced a second wave of European influence—this time English speaking—which was definitively marked by U.S. victory in the war between the United States and Mexico that ended with The Treaty of Guadalupe Hidalgo in 1848.According to Richard Griswold del Castillo, "The treaty established a pattern of political and military inequality between the two countries, and this lopsided relationship has stalked Mexican-U.S relations ever since."