From southern Peru you can hop on an overnight bus, cross the Bolivian border, get your stamp at immigration, and be on your way. This is the experience travelers from Australia, Canada, France, Germany, and most other developed countries will have. Unfortunately, if your passport is blue and says United States on it, things will not be so easy. U.S. - Bolivian relations have been stressed for decades. Outspoken Bolivian disapproval of U.S. policies, questionable U.S. intervention on Bolivian soil in the name of the “war on drugs” and general governance disagreements have not fostered an atmosphere of trust between the two. It’s quite hard for a Bolivian visitor to receive a tourist visa for the U.S. and thus, in reciprocity, Bolivia treats visitors from the states in the same manner.