3 Metaphors for isthmuses

That either of these Governments would embrace the offer can not be doubted, because there does not appear to be any other effectual means of securing to all nations the advantages of this important passage but the guaranty of great commercial powers that the Isthmus shall be neutral territory.

An isthmus is a neck of land joining two larger bodies of land.

The isthmus of Central America, including that of Panama, is the great highway between the Atlantic and Pacific over which a large portion of the commerce of the world is destined to pass.

3 Metaphors for  isthmuses