Among these injuries is the increasingly common traumatic brain injury, or TBI, the effects of which can range from a mild concussion to amnesia and serious neurological damage. Women have served in the United States military for over two hundred years. Some female veterans perceive themselves as discriminated against by their male counterparts and, as such, women who have served in the armed forces have sometimes been known as "the invisible veterans". Women were not fully recognized as veterans until after WWII, and prior to this they were not eligible for VA benefits. The current percentage of U.S. Veterans who are women is more than 8 percent. Women make up nearly 11.6 percent of OEF/OIF/OND Veterans. A tri-state (Washington, Idaho, Oregon) women veterans conference in Pendleton, Oregon, in April 2008, attracted 362 women veterans, according to the "East Oregonian" newspaper. On August 5, 2011, Erica Borggren was appointed Director of the Illinois Department of Veterans Affairs and has been "creating a new Women Veterans Program to help address the issue that women veterans often do not self-identify as veterans and do not take advantage of veterans’ benefits to the same extent as their male peers." She gathered in a webcast panel moderated by Stacey Baca with Dr. Rebecca J. Hannagan and Kimberly Mitchell at the Pritzker Military Library on January 24, 2013, to discuss important issues facing female veterans in today's military. African Americans have participated in every war fought by or within the United States. Black veterans from World War I experienced racial persecution on returning to the U.S. from overseas, particularly in Southern cities. Black veterans from World War II continued to be denied equality at home despite President Harry S. Truman's desegregation of the military after World War II. Black veterans went on to play a central role in the civil rights movement of the 1950s and 1960s. The National Association for Black Veterans is an organization that provides advocacy and support for African American and other minority veterans. The effect of active military service can be profound and lasting, and some veterans have found it difficult to adjust to normal life again. Figures from 2009 showed that twice as many veterans were in prison than there were British troops currently in Afghanistan. Homelessness, street-sleeping and relationship breakdown are also commonly reported. Research done by the UK homelessness charity CRISIS (1994) and the Ex-Services Action Group (1997) both found that a quarter of homeless people had previously served in the armed forces.