The Bosnia and Herzegovina flag was officially adopted in February, 1998.
The blue and white colors are from the Pan-Slavic Tricolore. The prominate gold shield is taken from the arms of King Stephen Tvrtho, 1376-1391. The fleur-de-Lis is symbolic of family ties to the Anjous, the ruling Hungarian dynasty in the 14th century.
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Map of Bosnia and Herzegovina here!