What if the US had annexed all of Mexico after the Mexican-American War?
How would history change if the United States annexed Mexico after the Mexican-American war?
Why didn't Mexico (the country) become part of the United States with New Mexico or Texas? What US states once belonged to Mexico? How did they become part of the US? What would have happened if the United States split in two after the revolutionary war? What would happen if the United States decided to invade the entire world at once? Would the US eventually be defeated and invaded? Could a civil war happen in Mexico? In the event of a second civil war, what would be the cause and what countries would become of the United States (Ex: Texas Republic)? Why didn’t Mexico attack the USA and take their land back while they were busy with their civil war? How could the Aztecs and other pre-Columbian empires throw off the Spanish Conquest? What was the main significance of the Mexican American War? What were the main causes and the main consequences? Was the Mexican-American War justified? What would happen if Canada, USA and Mexico merged to form one huge country? How did the colonial rule influence the Latin American revolution? Should Mexico became a US Territory like Puerto Rico or the Virgin Islands? What if all of the Old World declared war on the Americas? Is Mexico most likely to take over the world? Mexico American war? How did foreign involvement in Spanish Civil War influence its duration and outcome? If the US got into a Civil War that shattered the country, how do you think American cultures would evolve as time goes on? Why didn't the US take more of Mexico? Who would win in a non-nuclear war between Mexico and the United States and why? If there had been no or very little gold in California, what short-term and long-term changes to US and world history can we guess would have been the effect? What would happen if each state in the U.S. suddenly became an independent country? What would the negative and positive results be if all undocumented Mexican nationals in the US were returned to Mexico? Why didn't the USA take more land from Mexico in 1848 as shown in this map? What would have happened if the Spanish Armada had succeeded and England was invaded? What is the historical relationship between the Mexican war and War of 1812? Any thoughts? How has  American culture changed over the years? How can the United States of America change? What was the Spanish Civil War? What caused it? What caused the Spanish Civil War?