The center field is surrounded by a common border, which consists of eight stripes.

Hammond and Gary share a common border of nearly three miles.

Two regions that have a common border must not get the same color.

The two Governments never signed an agreement on a common border, though.

Do you think Afghanistan has a common border with America?

Despite their very long common border there are just two main places to cross.

Fighting soon breaks out on their common border and the high seas.

In the final analysis, this is about one of the Union's common external borders.

Will the protection of our common borders be more effective?

Legally, all the states that share this lake, also have a common border.