active service

noun

1. military duty in an operational area

Example Sentences

"The aircraft will return to active service once repairs and safety checks have been completed," it added.

From BBC

HMS Lancaster, which is based in Portsmouth when not on active service, seized the one and a half tonne load of narcotics while at sea in the Middle East.

From BBC

Clifford had been a trooper in The Queen's Dragoon Guards, but left the Army after two years in 2022, without seeing active service.

From BBC

All of the Navy's Astute Class submarines bear a name beginning with the letter A: HMS Astute, Ambush, Artful, Audacious and Anson are all in active service.

From BBC

"I write to advise that, after careful consideration, I have decided to continue in regular active service as a United States Circuit Judge for the Fourth Circuit," Wynn wrote.

From Salon