Aldrin was being sent in to keep an eye on the situation, and provide backup if necessary.

Far be it from him not to provide backup to a partner in distress.

I told him personally that he was there to provide backup only.

The main use of these facilities in medical image sharing is to provide backup.

Agents also have provided backup for the local police on certain calls.

He can provide powerful backup when the mood hits him.

"Let the search teams get some rest and stand by to provide backup outside the city if need be."

The Academy has also provided backup to the first team during player shortages.

They also provide backup to police officers in the area.

The two pilots, who were also heavily armed, would wait for a call to provide backup.