NATO used abbreviations for countries participating in operations. During operations under the Implementation Force (IFOR) mandate, two-letter codes were used for NATO member countries and three-letter codes for non-NATO member countries. Since the start of the Stabilization Force (SFOR) that system seemed to have been abandoned.
The three-letter codes for the Czech Republic, Hungary, and Poland were from before their membership to the alliance.
|BELUGA||Belgium, Luxemburg, Greece, Austria|
|HELBA||Hellenic, Bulgarian, Austrian|