The placement of ribbons on all US Military uniforms must be done according to an "Oder of Precedence". There are lists and photo charts available everywhere.
Yes, depending on the occasion shooting badges maybe optional.
Yes they can be
Yes, if they were personally earned.
Movement of National Defence happened in 1916.
What was National Defence Gold Bonds 1980
Carol I National Defence University was created in 1889.
National Defence Academy was created on 1954-12-07.
Estonian National Defence College was created in 1919.
National Congress for the Defence of the People was created in 2006.
National Defence University of Malaysia was created in 1995.
Provisional National Defence Council was created in 1981.
National Defence University of Warsaw was created in 1765.
UK National Defence Association was created in 2007.
Committee for the Defence of the National Interests was created in 1958.
National Defence University - Finland - was created in 1993.