Examples of use of Necessity
1. They are an incontrovertible security necessity, period.
2. "The [disengagement] plan is a national necessity.
3. "We insist on the necessity of implementing the law and the necessity of the handing over of all of them according to law," he added.
4. Then they languish, used more out of guilt than necessity.
5. We understand it‘s become part of military necessity.