The Commander in Chief of the United States Armed Forces is President Barack Obama, as of 2015. Per Article II, Section 2 U.S. Constitution, the duties of Commander in Chief of the Armed Forces are exercised by the sitting President. When elections are held in 2016, and in subsequent elections, a new President will be selected and the nation will have a new Commander in Chief.
A President is typically elected through the democratic voting process, or in rare cases, if a sitting President dies or is incapacitated, when a Vice President becomes the President. As the Commander in Chief, the President has the power to declare war and issue orders to the military, including the U.S. Navy, Air Force and ground troops in given operations. Maintaining a state of war for longer than 60 days requires additional Congressional approval, however. The President may also enforce martial law, which allows them to order for confiscation of rebel or enemy property.