Tuesday during All Things Considered President Barrack Obama will address the nation from the Oval Office. Obama promised in 2009 to end the formal “combat” mission in Iraq on August 31. Earlier this week the White House said the number of U.S. troops staged in Iraq had fallen below 50,000. Iraq is scheduled to assume its own security after Tuesday, with the U.S. falling into an advisory and backup role. President Obama makes his second official Oval Office address to the nation on All Things Considered (Tuesday) from 4:00 – 4:30 pm.