War in the Middle East could wreak havoc on the world economy if it isn’t resolved soon, the International Monetary Fund warned on Tuesday. Poor countries will suffer the most, while the U.S. will remain relatively insulated, the IMF said in its flagship publication on the global economy. The Washington-based Fund warned that global growth could slow to as little as 2 percent this year without a speedy resolution to the six-week conflict in Iran, due to a combination of soaring energy and food