It wasn't until President Bush Senior took power that the United States began a full scale reversal of its previous stance on Mexico. Before Bush Senior, the United States viewed Mexico as a hostile nation, expending great resources on investigation by the CIA and FBI into Mexico's military operations and functions. Bush decided to reverse this policy by eliminating all of the Reagan appointees and dismissing the data in favor of his idea of New World Order and NAFTA. This idea was contrary to intelligence agency reports and findings.
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U.S. Army Intelligence and Threat Analysis Center, secret report
116 pp. (5.5 MB)
Document 1

http://aztlandestroyer.com/public/ArmyC ... Mexico.pdf

The U.S. Army produced this annual analysis of the Mexican armed forces as part of its routine reporting on foreign militaries. The document, though heavily excised, contains details about the military's strength, doctrine, mission, weapons, training and intelligence capabilities, among many other aspects - information impossible to obtain from official sources inside Mexico. The report also provides some insights into civil-military relations in Mexico, the role of the army in controlling internal disorder, and the government's efforts to modernize its military. Part I, "Ground Forces," was completed in 1993 before the Indian uprising in Chiapas challenged the image of stability and security in Mexico. Part II, "Intelligence and Security," was published in August 1994 and includes a brief assessment of the impact of the Zapatistas on the military.

Source: National Security Archive FOIA Request
Declassified July 1998, request no. 13469

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U.S. Embassy in Mexico, confidential cable
46 pp. (2.1 MB)
Document 2

http://aztlandestroyer.com/public/USEmb ... lcable.pdf

May 11, 1995
The Mexican Army - Still Passive, Isolated, and Above the Fray?


This 46-page cable evaluates the effects of the twin shocks of the Zapatista uprising and the peso crash on the Mexican armed forces. Written by a political officer in the U.S. embassy, it offers an informal but fascinating analysis of the military's response to the recent crises including its initial, confused reaction to the Indian rebel attacks in Chiapas. The cable also seeks to explain why Washington's interest in creating closer ties with the army will be difficult: "We must recognize that […] the Mexican military remains an extremely conservative institution which looks skeptically on issues of international cooperation."

Source: National Security Archive FOIA Request
Declassified June 2003, request no. 24114