Awareness ribbons, due to their ubiquitous nature, have come to symbolize various concerns depending on the colours or the patterns used. For example, black ribbons may be used for mourning. Of the uses of ribbons to draw awareness to health issues, perhaps the most well-known is the red ribbon for support of those with acquired immunodeficiency syndrome (AIDS). Other health and social concerns which have adopted coloured ribbons include Alzheimer's disease (purple), Breast Cancer (pink), and bipolar disorder (green). Political use of ribbons include red ribbons worn to commemorate the October Revolution (7 November) in the former Soviet Union, and orange ribbons in the Orange Revolution in Ukraine. Yellow ribbons, in the United States, are used to show that a close family member is abroad in military service. In Russia, Belarus and other countries of the former USSR gold and black striped ribbons are used to celebrate the Allies' victory in World War II (9 May)