As Afghan war draws to a close, Obama looks to reframe foreign policy approach in second term --- BAGRAM AIR FIELD, Afghanistan (AP) -- For much of President Barack Obama's tenure in the White House, the wars in Iraq and Afghanistan have provided a well-defined framework for his foreign policy philosophy. He ran for the White House pledging to bring the conflicts to a close and promised the American people that he would seek to avoid unnecessary war. --- But as the second of those two wars winds down, Obama finds himself struggling to articulate what role he sees the U.S. playing on the world stage for the remainder of his second term. The ongoing conflict in Syria and Russia's threatening moves have also raised questions about how the U.S. can credibly threaten consequences against international foes when Obama so clearly wants to stay out of another large-scale military endeavor. -- The president's surprise trip to Afghanistan Sunday marked the start of a concerted White House effort that aims to answer some of those questions. Even as Obama heralded a drawdown of U.S. forces that will bring the war to "a responsible end" later this year, he said it was likely that a small contingent of U.S. forces would stay behind for counterterrorism missions, as well as to train Afghan security forces. -- "Because after all the sacrifices we've made, we want to preserve the gains that you have helped to win and we're going to make sure that Afghanistan can never again, ever, be used again to launch an attack against our country," Obama said during remarks to hundreds of U.S. troops at Bagram Air Field, the main American base in Afghanistan. -- The president is expected to fill in details of his post-2014 Afghanistan plan during a commencement address Wednesday at the U.S. Military Academy at West Point. The Pentagon has been pressing for Obama to keep up to 10,000 troops in Afghanistan, though the White House also has been evaluating options that call for fewer forces. -- Ben Rhodes, Obama's deputy national security adviser, said the Afghan drawdown, which follows the conclusion of the Iraq war in 2011, marks a "turning point" for Obama's foreign policy agenda. -- "Our foreign policy is going to look a lot different going forward than it did in the last decade when Iraq and Afghanistan really dominated the discussion," Rhodes told reporters traveling with Obama to Afghanistan. -- Yet it remains unclear exactly how a revamped foreign policy will take shape. Officials say Obama will continue to take a proactive approach to light-footprint counterterrorism operations the U.S. can undertake on its own, including drone strikes in places like Pakistan and Yemen. But he's also expected to emphasize his desire to have some measure of international consensus when large-scale military options are on the table. -- Obama's critics argue that his approach is too cautious and leaves the U.S. beholden to allies who are sometimes less willing to engage. The debate over launching a military strike on Syria last year shifted in part because British Parliament voted down the use of force, leaving the U.S. with few partners backing an attack. Rather than press forward, Obama decided to seek congressional approval, then signed on to a Russian effort to strip Syria of its chemical weapons stockpiles. -- The president's opponents contend that Obama's Syria indecision not only emboldened Russia as it annexed Crimea and eyes more Ukrainian territory, but also China in its land and sea disputes with numerous Asian nations. -- White House officials reject the notion that Obama can only show strength by launching military action and argue that economic sanctions are proving to be a deterrent to Russia. They also cast the chemical weapons agreement with Syrian as a sweeping success, even if it has done little to end a civil war there that has left more than 150,000 people dead. -- White House officials say Obama will also address the U.S. response to those issues during his West Point speech, as well as during an upcoming trip to Europe. - More, AP White House Correspondent, http://hosted.ap.org/dynamic/stories/O/OBAMA?SITE=WIMIL&SECTION=HOME&TEMPLATE=DEFAULT