Flag of Poland the other two. Due to the horizontal bicolor being a relatively simple and widespread flag design, and white and red being the most popular colors used on flags, there are many flags worldwide that are similar or near identical to the flag of Poland despite being unrelated to it. For example, the historical flag of Bohemia, the major historical region of Poland's southern neighbor, the Czech Republic, consists of two horizontal stripes, white on top and red on bottom. Similarly to the flag of Poland, it is of heraldic origin, the coat of arms of Bohemia being "Gules, a lion
Flag of Moldova Chad and Andorra, which are all based on vertical stripes of blue, yellow, and red. Until 2010, the colour shades of the Moldavian flag were not explicitly named. The Regulation regarding the flag stated that the colours of the flag must match the ones shown in the annex. Moldavian heraldist and vexillologist Silviu Andrieș-Tabac stated in an interview that in 1990, when the flag was being created, "it was taken into account that many countries have similar tricolour flags. As a result, it was decided to abandon the ultramarine blue, which is present on the Romanian flag, in favour of