General obligation bonds are a type of municipal government bond, which is government debt issued to raise money to finance public improvements. A general obligation bond is a municipal bond backed by the credit and taxing power of the issuing jurisdiction, rather than the revenue from a given project.
The Mexican-American War began because of a clash between the Mexican Army and the US Army in the disputed border area called the Neuces Strip (See the Thornton Affair-see Related Link shown below).
In 1845, America tried buying huge parts of Mexican land that included present day California and New Mexico. When Mexico refused to part with its land, America tried using force. Mexico and America both maintained that the border was theirs. This led to the beginning of the Mexican America War that would last for two years (1846-48). America won the war decisively. Mexico had to give up California, New Mexico, Utah, Nevada and parts of Colorado, Wyoming and Arizona.