All ribbons (or medals) must be placed using what is called an "Order of Precedence". There are pictured charts available everywhere.
MCO 1020.34G has the proper order of precedence.
A service star (Battle Star) is a miniature metal device worn by members of the uniformed services on medals and ribbons issued by the uniformed services of the United States to denote additional awards or periods of service .
Military medals and insignia that you have earned are entirely appropriate for a black or white tie event when wearing a tuxedo or a dinner jacket. Wear them the same way you would for the corresponding military uniform - that is "mess dress" or "dinner dress." This generally means miniature medals and devices over the lapel of the jacket. Ribbons for which there is no medal, and and large medals should only be worn with the military uniforms.
69 medals a few were lost, but now they're all found
The Largest List of Military Medals is on the link below. You do not have to purchase from that web site when you are researching for a particular medal. It helps if you know if the medal was issued to someone in a certain military branch because they list all the medals for each branch of the military.
MCO 1020.34G has the proper order of precedence.
Ribbons and medals are worn on the jumper or service coat on dress white. When worn together they are worn such that the ribbons are arranged row-wise, inbound to outbound based on precedence order.
For dress uniforms, medals always go on the left breast, ribbons on the right breast.
Federal ribbons and medals will, such as the Army Service Ribbon, National Defence Service Medal, etc. State level awards, however, will not.
Earned awards can be worn on the service uniform. You will have to consult the appropriate regulations for placement, they are typically going to be lower priority of any Army issued awards.
no such thing as placement of shooting badges on dress blue "alphas." the alphas are the jacket with large medals. the dress blue "bravo" is the blues jacket worn with ribbons and badges.
Ribbons in the military are awarded for various achievements and actions such as service, training, valor, and campaign participation. Each branch of the military has its own specific criteria for awarding ribbons, which are typically outlined in official regulations and policies. The ribbons are typically worn on the service member's uniform to signify their accomplishments and contributions.
medals ribbons
you where the ribbons on the left side pocket 1/4 above the pocket
Any medals, ribbons, or badges they were awarded as an enlisted soldier can be worn as an officer, so long as they're in the same branch. Some branches are selective about which awards from other services they'll permit to be worn on their uniforms.
Check the Marine Uniform regulations. They will specify what ribbons you are authorized to wear from the Army. Medals awarded are normally going to be allowed, but ribbons that don't come with medals probably won't be.
If by awards you mean medals/ribbons, there is an established "Order of Precedence" that must be followed: The highest medal first, followed by the next highest and so on