Imperial Navy
Medals

RibbonsNotes
SEH
SEH
Starburst for Extreme Heroism: Highest medal rewarded for bravery in combat to be awarded in the Imperium. The SEH is only awarded to individuals who show extraordinary accomplishment on the battlefield despite heavy risk to life and limb, heavy resistance, or injury or possibility of death. Needless to say, the SEH is usually awarded posthumously.
MCG
MCG

MCG (x2)
MCG (x2)

MCG (x3)
MCG (x3)
Medal for Conspicuous Gallantry: The second highest award for military bravery and valour. The MCG is awarded for distinguished acts of battlefield bravery, though usually ones that do not incur as much risk or danger as for the SEH.
MCUF
MCUF

MCUF (x2)
MCUF (x2)

MCUF (x3)
MCUF (x3)
Meritorious Conduct Under Fire: Lowest award for bravery awarded in Imperial military. The medal was largely given out for political and morale reasons as much as for genuine battlefield valour.
Purple Heart
Purple Heart

Purple Heart (x2)
Purple Heart (x2)

Purple Heart (x3)
Purple Heart (x3)
Purple Heart: From ancient Solomani tradition, the Purple Heart is awarded to members of the Imperial and colonial armed forces who are injured in combat. (To qualify an injury must be severe enough to require a period of hospitalisation.)

The standard arrangement for ribbons on the dress uniform is in reverse order of importance (most to least) from left to right. And if more than 3 of the same type (other than SEHs) then use the three-award ribbon first followed underneath by more of the same type.

Example of 6 medals
Example 1: Arrangement of 2 SEHs, 1 MCG, 4 MCUFs, and 2 Purple Hearts
Example of 2 medals
Example 2: Arrangement of 1 SEH and 1 Purple Heart

Hemdian’s Notebook