House Republicans say they will seek an additional $150 million in funding for East Coast missile defense.

Eyewitnesses to the terrorist attack on the U.S. mission in Libya will testify in the House next week.

The House Homeland Security committee will convene the first in a series of hearing on the marathon bombings next week.  

Obama declined to lay out specific consequences if chemical weapons are used, but said it would be a “game changer.”

U.S. military leaders have deployed more than 20 American soldiers to the war-torn West African nation of Mali, calling into question the Pentagon's previous promise not to put troops on the ground there. 

Congressional opposition to base closures is forcing the Army to waste millions of dollars on aging facilities, the service’s top civilian said Tuesday. 

Joint Chiefs Chairman Gen. Martin Dempsey said Tuesday that it was “literally impossible” for the Pentagon to incorporate $52 billion in cuts under sequestration in its 2014 budget.

Dempsey pushed back against criticism from Republicans, who have argued the Pentagon should have lived by the budget caps set by the sequester in the 2014 budget. The Pentagon requested a base budget in 2014 of $526 billion, $52 billion above the budget caps under sequestration.

Dempsey said that because sequestration didn’t take effect until March 1, the Pentagon wouldn’t have had the time to prepare a completely separate budget for that scenario.

The South Carolina senator said "the system did not work as designed" ahead of the marathon bombings. 

The top U.S. military official said Tuesday that armed U.S. intervention in Syria might not lead to a political solution that the Obama administration and lawmakers hope could end the two-year conflict.