The war on terrorism requires heightened vigilance against a wide variety of threats.

Being in charge of the martin colony requires constant vigilance.

This public health crisis requires continued vigilance and innovative strategies to reach those affected.

But democracy, even with the vote, requires vigilance, as Dallas County shows.

Which rooms require particular vigilance, and what safety hazards should you be most aware of?

The trust necessary in a modern society requires vigilance against such crimes that disturb the peace.

Together, we provide first-rate security, which requires vigilance on the part of everyone.

Maintaining the standards of a good restaurant requires constant vigilance.

It requires constant vigilance to keep the letter 'a' flattened out.

Helping to preserve the character of Riverdale has required vigilance.