WASHINGTON — Hours after being named a Nobel peace laureate, President Barack Obama Friday shouldered his duties as commander in chief of the US armed forces and convened his war council for crucial talks on Afghan strategy. Obama gathered his top political, military, and security aides in the secure Situation Room of the White House for the fourth in a series of in-depth consultations on rescuing the US mission in the unpopular eight-year war. "The president had a robust conversation about the security and political challenges in Afghanistan and the options for building a strategic approach going forward," an administration...