It has to have a steady and compelling strategic purpose.

And, by making clients focus on the brand, he made them think in much greater depth about their strategic purpose.

Going there, making the personal investment, has a real strategic purpose.

The telecoms giant's critics claim that it could be forced by the state to use its infrastructure for strategic purposes.

They are also used in restricted waters such as straits or channels, or coastal inland waterways which have the tactical and strategic purpose of area denial to the enemy.