The flag for Eritrea, which may show as the letters ER on some platforms.
The Flag: Eritrea emoji is a flag sequence combining ? Regional Indicator Symbol Letter E and ? Regional Indicator Symbol Letter R. These display as a single emoji on supported platforms.
Flag: Eritrea was added to Emoji 1.0 in 2015.
U+1F1EA
U+1F1F7
?? Regional indicator symbol letter e
?? Regional indicator symbol letter r