The flag for Bolivia, which may show as the letters BO on some platforms.
The Flag: Bolivia emoji is a flag sequence combining ? Regional Indicator Symbol Letter B and ? Regional Indicator Symbol Letter O. These display as a single emoji on supported platforms.
Flag: Bolivia was added to Emoji 1.0 in 2015.
U+1F1E7
U+1F1F4
?? Regional indicator symbol letter b
?? Regional indicator symbol letter o