The Belgian orders with gold stripe(s) on ribbon were instituted following a Royal Decree dated 24 June 1919, which stipulated a number of alterations with which to reward civilians for their services during the World War : if awarded for an act of exceptional bravery and the recipient was mentioned in the nation's Order of the Day for it, the ribbon was to have gold thread edges and a gold star. If for an act of bravery of a lesser degree which didn't warrant the Order of the Day mention, the gold star was omitted from the ribbon but the gold stripes remained.
If for distinguished services during the hostilities, a central gold thread stripe was woven into the ribbon (bearing a gold star if mentioned in the Order of the Day of the Nation). If for highly distinguished services in war welfare work, a silver star was worn on the central stripe.

In 1946 a decree was issued to make these distinctions also available for similar acts or services during WWII.
The Belgian Orders with gold stripe(s) on the ribbon
Order of Leopold, Order of the Crown and Order of Leopold II
The Belgian Orders with crossed swords on the ribbon
By royal decree of 14 February 1939 silver coloured crossed swords were created for the Belgian national orders (Order of Leopold I, Order of the Crown, Order of Leopold II), for award to war veterans and taking into account the number of "war titles" gained by their war services. The number of "war titles" is arrived at by adding up several criteria e.g. decorations awarded, citations received, promotions in rank, escape, front stripes, combat service etc.
Crossed swords devices for resp. WWI, WWII and Korean War
© Hendrik Meersschaert, 2017
For WW1 only silver crossed swords were officially created and awarded from 6 war titles onwards. However, gilt crosses have been manufactured for wear with gilt officer class decorations although these thus are not officially recognized.
Depending on the number of war titles, the war veteran of World War II is entitled to either a gilt, silvered or bronze crossed sword device on the ribbon for resp. 6, 9 or 11 such war titles.
For the Korean War the same criteria as for the WW2 swords device apply.