Country
The mouth of the king extends all the way around him (like in this kanji). Where his mouth reaches, that is his country, give or take a few drops.
Imagine his talking taking physical form. As he talks, waves extend out from him, and stop right at the border of his country before getting to the next one.
こく
くに
None
Turns out the king of this country loves drinking Coke (こく). Every morning that big mouth of his swallows a whole 2-liter bottle of Coke for breakfast.
Would you drink that much soda for breakfast? Now this king says he wants to pass a law requiring everyone in the country to drink nothing but Coke! That's crazy!