Why did the Americans want to capture Mexico City during the war with Mexico?

Are stun guns legal in Mississippi? What time is it in El Paso Texas now? How many miles are between Wichita Kansas and Minneapolis Minnesota? Which tribe lived on the San Francisco de Solano mission? How do you say bullying in Turkish? How has Europe's natural evironment made human contact relatively easy? Where does billie joe Armstrong like to eat in New York city? What is the size of New Mexico? What is the national animal in San Marino? Did thaddeus kosciuszko have any children? What side of Australia is the Great Dividing Range? What percentage of Las Vegas guests are comped rooms? How long does the school to become a State Trooper in North Carolina take? Which country took over the dutch new Netherlands in late 1600s? Who is sheikh Rashid Bin Khalifa al khalifa? What are people from Malta called? What is the location of Pakistan on world map is it in north south or in middle it? Oregon boat registration is good for how many years? What is Boxing Day in Jamaica? General who led an expedition to Mexico to capture pancho villa and commanded the us army in world war 1?