The Costs of War Project identifies no less than 76 countries, 39% of those on the planet, as involved in that global conflict. That means places like Afghanistan, Syria, Iraq, Yemen, Somalia, and Libya where U.S. drone or other air strikes are the norm and U.S. ground troops (often Special Operations forces) have been either directly or indirectly engaged in combat. It also means countries where U.S. advisers are training local militaries or even militias in counter-terror tactics and those with bases crucial to this expanding set of conflicts. As the map makes clear, these categories often overlap.
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