The two countries have never agreed on an international border between them.
The north town line is the international border with Canada.
This is actually one town, with the international border running down the middle of its main street.
Late in the day we arrive at the international border.
The international border with Mexico lies about 9 miles in a straight line to the south.
If things are tough, we should be able to speak our mind until they pull us back to the international border.
It is good practice to know where international borders are.
It has an international border with Pakistan in the south.
Some things are the same even when you cross international borders.
Find someone who has crossed an international border in the past year.