How to use "loyalty" in a sentence

Since this country was founded, each generation of Americans has been summoned to give testimony to its national loyalty

For some of them, it's the only loyalty they'll ever be capable of

Only bureau chiefs, their immediate staffs, station chiefs in major cities, and senior field officers who had proved themselves and their loyalty - only those people knew the true nature of their employers and their work

"You took a loyalty oath," Zachariah said