Negro vs.Black?

US Army Allows Use Of 'Negro' When Referring To Black or African-American Soldiers-美國陸軍准許用『黑奴』/『黑鬼』來指非州裔美國士兵

The newly updated Army Command Policy regulation, most recently published on Oct. 22, 2014, says that Army personnel can use the word "Negro" when referring to "black or African American" personnel. The Army confirmed to CNN in a report Wednesday that the language was contained inside the document, also known as regulation AAR 600-20. 

While the document is regularly updated to reflect new regulations or alterations to old ones, an Army official says it's not clear when they word was added; it may have been present for years.

The wording appears in Chapter 6, under "Equal opportunity policy," stating: "A person having origins in any of the black racial groups of Africa. Terms such as "Haitian" or "Negro" are allowed to be used, in addition to "Black" or "African American."