If you declare independence, you get a message like this:
"Bad news, your Excellency, the English Royal Expeditionary Force nation have declared war on us!"
The "Royal Expeditionary Force NATION"? ;-)
This is based on this string:
Bad news, your Excellency, the %nation% nation have declared war on us!
Version: 0.13.0+dev, commit cb10784763ce2a594dc5333ba83a56e197bc4e19
Should be fixed in git.4ea1dda.