The Service Flag is an official banner authorized by the Department of Defense for display by families who have members serving in the Armed Forces during any period of war or hostilities the United States may be engaged in for the duration of such hostilities.

The Service Flag, also called the Blue Star Flag, was designed and pattented by WWI Army Captain Robert L. Queisser of the 5th Ohio Infantry who had two son's serving on the front line.  THe flag quickly became the unofficial symbol of a child in service.  President Wilson became part of this history when in 1918 he approved a suggestion made by the Women's Committee fo the Council of National Defense that mothers who had lost a child serving in the war wear a Gold gilt star on the traditional balck mourning arm band.  This led to the tradition of covering the blue star with a gold star on the Service Flag to indicate that the service member has died.  

During WWII the practice of displaying the Service Flag became much more widespread. Most flags were hand madeby mothers across the nation.  One of the most famous flag was that of the five Sullivan brothers who all perished on the U.S.S. Juneau.

The Blue Star Mothers was founded as a Veteran Service Organization and was part of a movement to provide care packages to military members serving overseas and also provide assistance to families who encountered hardships as a result of their son or husband seriving in the war.

In 1960 Congress chartered the Blue Star Mothers of America as a Veterens Service Organization and in 1966, the Department of Defense revised the specifications for design, manufacture and display of the Service Flag.

The Depatment of Defense specifies that family members authorized to display the flag include the wife, husband, mother, father, stepmother or father, parent through adoption, foster parents, children, stepchildren, children through adoption, brothers, sisters and half brothers or sisters of a member of the Armed Forces of the United States.  The flag should be displayed in a window of the residence of person authorized.

The Service Flag may also be displayed by an organization to honor the member of that organization serving during a period of war or hostilitiesThe Service Flag is an indoor flag that should be be flown facing out from the front window of the home or organization.

If the U.S. Flag is also displayed with the Service Flag, the U.S. Flag should be of equal or greater proportions and should take the place of honor above the Service Flag.  

Each Blue Star on the Flag represents a service member in active duty. A Gold Star is displayed if a service member is killed in action or dies in service.  If several stars are displayed by one family the Gold Star takes the honor of being placed at the top. The Gold Star should be slightly smaller than the Blue Star to create a blue border surrounding the Gold Star.

Dsiplay of a ServiceStar Banner is done during times of war.  Once again families are displaying banners at home. Blue Star Flags may be purchased through the internet, at stores or made by hand.