Related by context. Frequent words. (Click for all words.) 57 gun emplacements 57 blockhouse 55 fortifications 55 emplacements 54 medieval fortress 51 turreted 51 fortresslike 51 watchtowers 50 forts 50 pillboxes 49 palisade 48 machine gunners 48 Khe Sahn 48 fort 47 Quonset huts 47 medieval castles 47 wooden huts 47 gun turrets 47 missile silos 47 Forts 46 Stalag Luft III 46 bunkers 46 LSTs 46 antiaircraft guns 46 fortresses 46 timbered 46 turrets 46 barracks 45 hilltop 45 watchtower 45 garrisoned 45 buildings 45 craggy mountains 45 densely wooded 45 log cabin 44 bivouacked 44 farmhouse 44 underground bunkers 44 razor wire fences 44 stockade 44 unexploded shells 44 uninhabited 44 tunnels dug 44 limestone caves 44 munitions depot 44 huts 44 Wrangell St 44 medieval castle 44 farmhouses 43 interpretive panels 43 towering cliffs 43 fieldstone 43 airfields 43 schoolhouse 43 demilitarized zone separating 43 firebase 43 camouflage netting 43 barbed wire fences 43 forested hills 43 thatched cottages 43 Gravestones 43 ammunition dumps 42 mist shrouded 42 terraced gardens 42 bunkhouses 42 caves 42 reinforced concrete 42 schoolhouses 42 redbrick 42 Chosin Reservoir 42 bomb craters 42 Quonset hut 42 ridge overlooking 42 stone fireplaces 42 Fort Moultrie 42 Demilitarized Zone DMZ 42 razor wire topped 42 Khe Sanh 42 log cabins 42 battlements 42 granite boulders 41 Barracks 41 deep ravines 41 boxlike 41 fortress 41 turret 41 courtyards 41 church steeples 41 Checkpoint Charlie 41 munitions dump 41 gulches 41 tunnels 41 spiral staircases 41 Sited 41 leaded glass windows 41 room schoolhouses 41 lighthouse 41 wooden crates 41 Beaux Arts style 41 dirt mounds 41 knolls