How to use "require" in a sentence

Again, if the United States be not a government proper, but an association of States in the nature of contract merely, can it, as a contract, be peaceably unmade by less than all the parties who made it? One party to a contract may violate it - break it, so to speak; but does it not require all to lawfully rescind it?

And finally, in our progress towards a resumption of work, we require two safeguards against a return of the evils of the old order

I am prepared under my constitutional duty to recommend the measures that a stricken nation in the midst of a stricken world may require

that alone will require a lot more manpower than the police can spare for anything except a murder case, a hot kidnapping, or maybe a narcotics investigation."