A fortified place is a structure that has been built to protect against attack. It usually consists of walls, towers, and other defensive structures. The term 'GARRISON' (8 letters) refers to a group of soldiers stationed in a fortified place to defend it. A 'KEEP' (4 letters) is a large tower or stronghold within a CASTLE or fortress. A 'BASTION' (7 letters) is a projecting part of a fortification, typically at the corner of a wall. Finally, a 'CASTLE' (6 letters) is a large fortified building or set of buildings. All of these terms refer to different types of fortified places.