Since President Felipe Calderon took office in December 2006, Mexico has embarked upon the implementation of a culture of law and security that has triggered a war with organized crime. This war has involved all sectors of society and has activated a series of renovations in its armed forces, which to date remain the most trusted institutions in Mexican society. This groundbreaking Letort Paper is an important contribution to an understanding of the structure, culture, motivators, and challenges of the Mexican military in the 21st century. Mr. Inigo Guevara Moyano, a Mexican researcher and...