The flag for Botswana, which may show as the letters BW on some platforms.
The Flag: Botswana emoji is a flag sequence combining ? Regional Indicator Symbol Letter B and ? Regional Indicator Symbol Letter W. These display as a single emoji on supported platforms.
Flag: Botswana was added to Emoji 1.0 in 2015.
U+1F1E7
U+1F1FC
?? Regional indicator symbol letter b
?? Regional indicator symbol letter w