This bibliography differs from the previous publications in this series since it concerns a specific time in American history, the Mexican War period from 1835 to 1850. From a military standpoint, the victorious efforts of American military forces can be considered as the proving ground for the Army and the Navy that emerged during the Civil War. The annexation of Texas and the acquisition of lands from Mexico predestined both the expansion of the United States to the Pacific and the conflict which divided brother from brother. This bibliography lists pertinent materials to be found in the Military History Research Collection related to this part of American history and is not intended to be a definite listing of bibliographic references on the period.