Bregeut Atlantique, Alize, Fairey Gannet, Lockheed P-3, Tupolev Bear, etc. turboprops all played major roles during the Cold War. Most of them hunted submarines.
EP-3s still carry weird and wonderful electronic sensors as they hunt for Taliban, Boko Haram, ISIL, etc. Poorer air forces use EC-21 turboprops - festooned with antenni when they eavesdrop on various insurgent cells and all those naughty groups fear visits by AC-130 gunships.
..... and what about those turboprop Predator drones delivering Hellfire missiles to Al Queda, Houthi rebels, etc.?
During the Falklands War (early 1980s) Argentina flew turboprop Mentors and Pucaras to the islands in hopes that they would strafe the be.......s out of the British Army. Too bad SAS and SBS sabotaged most of those planes before they could fire shots in anger.