Service ribbons or ribbon bars are small ribbons mounted on small metal bars equipped with attaching devices, and are generally issued for wear in place of medals. Each country's government has its own rules on what ribbons can be worn in what circumstances, and in which order. This is usually defined in an official document and is called "the order of precedence" and/or "the order of wearing". In some countries, (particularly the U.S.), some awards are "ribbon only", having no associated medal.
The service ribbon for a specific medal is usually identical to the suspension ribbon on the medal. For example, the suspension and service ribbon (US standard size, 1 1/4 inches by 3/8 inches) for the US Government's Purple Heart medal is purple with a white vertical stripe at each end (see Photo).
However, there are some military awards that do not have a suspension ribbon, but have an authorized ribbon and unit award emblem. The Soviet Order of Victory is a badge that was worn on the military parade uniform. However, a ribbon bar representing the Order of Victory was worn on a military field uniform.
There is a variety of constructions of service ribbons. In some counties, service ribbons are mounted on a "pin backing", which can be pushed through the fabric of a uniform and secured, with fasteners, on the inside edge. These ribbons can be individually secured and then lined up, or they can be all mounted on to a single fastener. After the Second World War, it was common for all ribbons to be mounted on a single metal bar and worn in a manner similar to a brooch. Other methods of wearing have included physically sewing each service ribbon onto the uniform garments.
"Orders of wearing" define which ribbons may be worn on which types of uniform in which positions under which circumstances. For example, miniature medals on dinner dress, full medals on parade dress, ribbons on dress shirts, but no decorations on combat dress and working clothing. Some countries (such as Cuba) maintain a standard practice of wearing full service ribbons on combat utility clothing. Others strictly prohibit this. These regulations are generally similar to the regulations regarding display of rank insignia, and regulations regarding saluting of more senior ranks.
Service medals and ribbons are generally worn in rows on the left side of the chest. In certain commemorative and/or memorial circumstances, a relative may wear the medals or ribbons of a dead relative on the right side of the chest. Medals and ribbons not specifically mentioned in the "Order of wear" are also generally worn on the right side of the chest.
The study, history and collection of ribbons, among other military decorations, is known as phaleristics (sometimes spelled faleristics by users of U.S. English).
Notable examples 
- Ecuadorian General of the Army Paco Moncayo
- Commander Richard Marcinko
See also 
- List of military decorations
- List of prizes, medals, and awards
- Awards and decorations of the United States military
- US Army Regualtion 600-8-22, 2006, P. 72&73, 6--2 Service ribbons, a.