Briefly explain the meaning of the "Double V" campaign and describe what changes it achieved.i am doing us history work

The Double V program was started by the Pittsburgh Courier, which was a newspaper for African Americans.  It emphasized fighting for two goals -- victory over our enemies in the war and victory over the enemies of black people at home.

The campaign (or something) was pretty successful because there were a lot of changes made to make the war effort fairer to blacks.

The biggest win that was achieved during the war was FDR's excutive order 8802 that set up the Fair Employment Practices Committee.  This was meant to ensure that there was no discrimination in the war effort.  It was of course not completely successful, but it did enough that the Courier stopped writing angry articles and started to write articles that were more positive.