The Washington Post: On Saturday night — right at midnight — the United States’ agreement with the Afghan Taliban is scheduled to take effect. While the agreement says the United States will withdraw its troops from Afghanistan, we know nothing of what it says about military contractors. But contractors have provided the lion’s share of U.S. military staffing in Afghanistan, and other post-9/11 wars. Here’s what you need to know about military contractors in Afghanistan and Iraq. The contractor force is largely hidden. Click here to read more (external link).