WASHINGTON, Rabi'II 23, 1436, February 12, 2015, SPA -- U.S. President Barack Obama said Wednesday that he was bringing back all American troops fighting Ebola in West Africa and marked a new phase in the battle to help countries “get to zero” cases of the virus. Obama said in a speech at the White House that the outbreak was a “wake-up call” for the world, and that wealthy countries need to invest to ensure that poor nations have basic health systems to detect and fight diseases. “This is not charity,” Obama said. “The investments we make overseas are in our self-interest.” --SPA 11:25 LOCAL TIME 08:25 GMT www.spa.gov.sa/w