The Public Affairs Industry has developed over the last 50 years from being an 'optional extra for the PR department' to 'an operational necessity in the boardroom'.

The flying of night reconnaissance was a learning effort, as well as an operational necessity.

Joint interoperability became an operational necessity rather than just an optional capability.

Only essential campaigns will be allowed; freeze on all new consultancy spend unless it is an operational necessity.

Vauban's successors expanded the collection as and when operational necessity demanded, right up until 1870, when they were rendered obsolete by advances in the power of artillery.

You were set-up by sheer chance: he was set-up as an operational necessity.

Initial appointments are 13 month assignments, although, they may be terminated earlier due to operational necessity.

The tower's stolid, windowless blockhouse looked practically indestructible, an operational necessity in an area practically abandoned.

He did not have enough field services to alleviate the hardships faced by the soldiers; he analyzed operational necessities theoretically rather than contextually.

A strong motivation for the establishment of the EATC was the limited availability of assets and the operational necessity to co-operate very closely.