Twelve Mexican soldiers were arrested Thursday on suspicion of collaborating with corrupt policemen protecting members of the Gulf Cartel drug gang, Reuters reported.

The arrests have come as a blow to President Felipe Calderon, who recently deployed thousands of military troops to the border city of Ciudad Juarez in an attempt to curb escalating drug violence. The deployment is part of his new military-backed drug prevention campaign, according to Reuters.

Calderon decided to use military troops to combat growing drug violence throughout the country partly because soldiers have traditionally been viewed as less prone to corruption than police, Reuters reported.

Several recent high-profile arrests, however — including a presidential guardsmen who allegedly received $100,000 per month to track Calderon's movement throughout the country for drug traffickers — reveals corruption in the highest echelons of Mexico's security force.

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