Sending more US troops to Iraq fits a 2-year pattern

WASHINGTON (AP) — President Barack Obama’s decision to send still more American troops to Iraq, and to put military advisers closer to the front lines against the Islamic State, fits a pattern of ever-deepening involvement in a country whose war Obama exited with supposed finality in December 2011.
From the initial contingent of 170 U.S. soldiers who entered Baghdad as advisers in June 2014, after the Islamic State overran much of northern and western Iraq and seemed poised to threat