The United States end its "combat mission" in Iraq in September 2010 seven years after invading while troops continue in support roles. The war in Afghanistan, begun in 2001, continues with about 88,000 U.S. troops deployed there, down from a peak of 100,000 in March 2011. The U.S. has reached agreements with the Afghan government for its troops to lead combat operations by the end of 2013 and for all U.S. troops except a core of trainers, advisers and security forces to be out of the country by the end of 2014. To date more than 1,800 U.S. troops have been killed in Afghanistan and another nearly 16,000 wounded. In Iraq U.S. casualties totaled 4,408 dead and 31,922 wounded as of Feb. 2012. Adding to the domestic debate over the cost of the wars are the issues of jobs and care for returning veterans, many of whom are physically intact but need help with psychological issues like post-traumatic stress disorder. The Vietnam War even continues to echo in Congress with a new appropriation adding coverage for several medical conditions suffered by veterans who were exposed to Agent Orange, a chemical defoliating sprayed in the jungles on the ground and from the air. Current anxiety centers on saber rattling over attacking Iran to stop its program of nuclear energy development, which some fear actually is intended to product nuclear weapons.