It is the only dry land connection between Churchill and the rest of Canada.
The siege started on 8 September 1941, when the last land connection to the city was severed.
There is a land connection, but this requires a substantial detour.
There are currently two man-made land connections over the straits.
Taxpayers have not paid for the bridge and the tunnel, but tax money has been used for the land connections.
Formerly an island, it became a peninsula from 1906 on by the creation of a wide land connection that doubled its former size.
This provides them with a direct, safe land connection.
Since the continental land connection began to break apart 14,000 years ago, the crossing or crossings presumably came earlier.
The tunnel was the most easterly land connection between the north and south banks of the Thames.
"But of great concern are the land connections both in Manhattan and at the airports."