The Presidential Unit Citation, originally called the Distinguished Unit Citation, is awarded to units of the Armed Forces of the United States and allies for extraordinary heroism in action against an armed enemy on or after 7 December 1941. (Wikipedia) For the source and more detailed information concerning your request, click on the related links section (Wikipedia) indicated directly below this answer section.
Philippine Republic Presidential Unit Citation was created in 1946.
Presidential Unit Citation - United States - was created in 1942.
The Coast Guard appears to be the most recent recipient for Hurricane Katrina. Other than that there are really relatively few.
It doesn't work that way. If they serve in a unit which was awarded the Presidential Unit Citation prior to their serving in that unit, they would wear the Presidential Unit Citation with their unit awards only while they are in that unit. If they serve in a unit when it is awarded the Presidential Unit Citation, then they wear that award at all times, regardless of what unit they're in.However, if neither of these is applicable, then it may not be worn, whether the service member is a combat veteran or not.
no
Yes. They fall under 1st Marine Division which was awarded the Presidential Unit Citation for OIF I.
354th civil affairs brigade
No, it received the Meritorious Unit Commendation.
You can only wear the Presidential Unit Citation ribbon if you were in the unit at the time it was awarded.
IF you were a member of that unit when it was awarded the unit citation, you can wear it while assigned to any unit. If the unit citation was awarded during a period when you were not a member of that unit, then you may only wear it while assigned to that unit.
A great many units have been awarded the US Presidential Unit Citation since it was started from 7 December 1941. There are too many to list here. See the related links, below for a link to the list of awarded units on Wikipedia.
c battery 5th/8th fa