WASHINGTON, March 24, 2010 – This summer will mark the first time since 2003 that the number of U.S. troops in Afghanistan will overshadow the American presence in Iraq, the top U.S. military officer told Congress today. Driving the eclipse is the 30,000-troop surge President Barack Obama announced for Afghanistan in December, roughly a third of which is in place, and with 18,000 of the additional forces expected to be in Afghanistan by late spring as troop levels in Iraq continue to drop. “Indeed, by the middle of this year, Afghanistan will surpass Iraq, for the first time since 2003,...