Reports of sexual assaults in the military jump 50 percent after launch of campaign urging victims to come forward.
Secretary of State Chuck Hagel says he's reviewing whether the military should ban tobacco sales and smoking on bases and ships.
Secretary of Defense outlines massive budget cuts aimed at shrinking the U.S. military.
Defense Secretary Chuck Hagel said Thursday that the U.S. intelligence community has determined that chemical weapons have been used on a small-scale in Syria.
Chuck Hagel took charge of the U.S. Defense Department on Wednesday after a bruising confirmation fight.
The Senate approved Chuck Hagel's nomination for Defense secretary Tuesday, ending a contentious battle that exposed deep divisions over the president's Pentagon pick.
At least 15 Republican senators called on President Obama Thursday to withdraw his nomination of Chuck Hagel for Defense secretary.
Senate Republicans on Thursday blocked -- for now -- Chuck Hagel's nomination to lead the Pentagon.
President Obama's choice to head the Pentagon goes in front of the Armed Services Committee.
President Obama nominated two controversial officials for his second-term national security team on Monday.