When the orcs are hoping to crack down a gate deep inside of Minas Tirith, Gandalf will take a couple minutes to notify Pippin about the peaceful mother nature of the afterlife - a Far Green Country. In the novels, many hundreds of Orcs are pretty sensibly despatched north to guard towards the Ride of the Rohirrim, forcing Theoden and his guys are ready to sneak around them thanks to Ghan-buri-Ghan.