Obama speaks on Libya (8 images)

U.S. President Barack Obama addresses the nation on the situation in Libya as to why the U.S involvement is important, during nationwide television address from the National Defense University in Washington, DC on March 28, 2011. UPI/Dennis Brack/Pool

U.S. President Barack Obama addresses the nation on the situation in Libya as to why the U.S involvement is important, during nationwide television address from the National Defense University in Washington, DC on March 28, 2011. UPI/Dennis Brack/Pool

Chairman of the Joint Chiefs of Staff Mike Mullen (L), Secretary of Defense Bill Gates and Vice President Joe Biden (R) listen as U.S. President Barack Obama addresses the nation on the situation in Libya as to why the U.S involvement is important, during nationwide television address from the National Defense University in Washington, DC on March 28, 2011. UPI/Dennis Brack/Pool

U.S. President Barack Obama addresses the nation on the situation in Libya as to why the U.S involvement is important, during nationwide television address from the National Defense University in Washington, DC on March 28, 2011. UPI/Dennis Brack/Pool