Here is a historical Civil War Playmobil set 3811 released in the year 1995. Titled: The Western Union Military Calvary.
Playmobil set 3811 comes with four Union soldiers, all mounted on horses, plus a native american indian with his own wild white horse. This set shows a flag for the Unionn regiment 5, with blue and yellow stripes.
Above is the back of the box of Playmobil set 3811 from the year 1995. It comes with four western soldiers and one native american, plus five horses!