The flag for Kosovo, which may show as the letters XK on some platforms.
The Flag: Kosovo emoji is a flag sequence combining ? Regional Indicator Symbol Letter X and ? Regional Indicator Symbol Letter K. These display as a single emoji on supported platforms.
Flag: Kosovo was added to Emoji 1.0 in 2015.
U+1F1FD
U+1F1F0
?? Regional indicator symbol letter x
?? Regional indicator symbol letter k