It had to be done sooner or later.
You're going to have to face it sooner or later.
Well, sooner or later she'll have to take care of the babies by herself.
A part deprived of its natural nerve-supply sooner or later suffers from the effects of malnutrition.
The Allies had foreseen from the outset that land forces would have to be brought into play sooner or later in their campaign in this region.