This book is focused on illuminating the U.S.'s empire across its history, going from what Immerwahr calls the Colonialist Empire to the Pointillist Empire. Basically, over time, the U.S. has decided it doesn't need to control much land because technology has improved to let them control things from a series of points, AKA our 800 military bases overseas. Puerto Rico might be more visible in the average American's knowledge now (one hopes), but what about how entangled the U.S. was in the Philippines, to the point that it was actually on the maps in the 1900s? What about the fact...