The answer will vary, depending what country you live in.
Iran
The country that forms most of the northern border of the United States is Canada. The country directly to the south is Mexico.
The country that forms most of the northern border of the United States is Canada. The country directly to the south is Mexico.
The country bordering France to the South East is... Italy.
The Limpopo forms that border between Zimbabwe and South Africa.
The Dominican Republic is an island country in the Caribbean Sea. It is bordered by Haiti on its west. The Atlantic Ocean forms its northern border, and the Caribbean Sea forms its south and east border.
Minnesota only forms a border for one country: Canada.
The Orinoco River forms a 200-mile border between Venezuela and Colombia in South America.
the river that forms the border between south america and zimbabwe is Limpopo.
California's southern border is shared with the country of Mexico.
Canada forms the most northerly border of the U.S.
The Murray River forms the border between New South Wales and Victoria.