Defense spending

U.S. taxpayers have spent $6.4 trillion on post-9/11 conflicts

A boy watches a U.S. convoy on patrol in Syria
A boy watches a U.S. convoy on patrol in Syria, Oct. 31. Photo: Delil Souleiman/AFP via Getty Images

American taxpayers so far spent $6.4 trillion on costs related to and caused by post-9/11 wars and conflicts in more than 80 countries, according to a new report by the Watson Institute of International and Public Affairs at Brown University.

The big picture: The institute notes that because the conflicts have been largely paid for with deficit spending, their total cost will continue to rise from loan interest — even if the U.S. withdraws from major war zones by the end of fiscal year 2020. Ongoing care costs for veterans will also increase the eventual cost.

House votes to bar Trump from striking Iran without congressional approval

Photo: Jabin Botsford/The Washington Post via Getty Images

More than 20 House Republicans joined Democrats on Friday in a vote to restrict President Trump from waging war against Iran without congressional approval, the Washington Post reports.

The state of play: The restriction, added to the House's version of a $733 billion defense bill, bars the Trump administration from using federal funds for military action against Tehran. The GOP-led Senate blocked a similar amendment last month in its version of the bill.