The war shouldn't last longer than two or three more months.

We both believe the war may last a good while.

The president has said this war would last a long time.

It is quite likely that this war will last three years.

The war wouldn't last four hundred years; it would be over in less than ten.

All reports suggest that such a war will last five years or more.

Little did we imagine then that the war would last until November 1918.

Or put another way, about four months longer than the war in Iraq lasted.

The war lasted off and on from 1642 until 1660.

The war, which they expected to last 10 days, has lasted more than three years.