This book covers the last 7 years of the modern drug war in Mexico by focusing on the specific tactics of cartels。 It covers myriad issues， like sniper rifle use trends， narco tanks， caltrop use in Texas， cartel go pro recordings of their attacks， trenches， narco submarines， etc。 All of the entries are carefully vetted using multiple sources allowing the reader to avoid the misinformation trap。 The incidents/trends profiled （about 30） are well cited and contain brief excerpts from primary sources in addition to brief analysis。 This is what makes this collection so valuable， it serves as a source of primary and secondary research。 It also reads easily allowing the reader to bounce between topics of interest。 This Small Wars Journal El Centro Anthology will be of interest to anyone with an interest in the drug war in Mexico， border security， or illicit networks or tactics general