Dmitri Trenin writes for Carnegie Moscow Center: There are two problems with U.S. overseas deployments outside the Western world. One is when Americans enter a region by force, disrupting the geopolitical status quo. The other is when they pull out, leaving behind a mess.
see the Carnegie Moscow Center’s website: Afghanistan After the U.S. Pullout: Challenges to Russia and Central Asia – Carnegie Moscow Center – Carnegie Endowment for International Peace