The Flag of Republic of Srpska

Square field, proportions 1 (height), by 2 (width) with horizontally
arranged fields of the same height - red over blue over white.

Coat of Arms of Republic of Srpska

On the red Coat of arms, overheaded by golden royal crown, a
two headed silver eagle in take off, armed with gold, with
golden tongue and legs, chests covered by red coat of
arms with silver cross with four alike letters,
their backs facing the root of the cross.