An account of the México Indígena project, which sought to map certain indigenous populations in Mexico, and its collapse after it was discovered that one of its principal funders—and the recipient of all of its gathered data—was the US Foreign Military Studies Office, tenuously drawn out to book length with impressions on how maps of indigenous peoples in the Americas have previously been used by indigenous communities and by US military interests.
The implicit claim of the title that using maps for control is somehow novel or unusual rather than the entire point of maps for as long as people have been mapping is obviously questionable (maps aren't being weaponised—they are and always have been weapons), and it's not clear that Weaponizing Maps wouldn't have been better off being a long-form article somewhere purely about México Indígena than a book. If nothing else, though, it does at least comprehensively demolish the credibility of the American Geographical Society, past and present, which is always good.