"America's Wars: Factsheet."互联网档案馆的存檔,存档日期July 20, 2017,. US Department of Veteran Affairs. Office of Public Affairs. Washington DC. Published April 2017.
"America's Wars: Factsheet."互联网档案馆的存檔,存档日期July 20, 2017,. US Department of Veteran Affairs. Office of Public Affairs. Washington DC. Published April 2017.