Related by context. Frequent words. (Click for all words.) 60 fortifications 54 earth bund 53 earthen mounds 51 fort 51 earthen berms 51 blockhouse 50 Nachchikuda 50 dug trenches 49 forts 49 earthen wall 49 revetments 49 sand berm 49 emplacements 49 roadbeds 48 palisade 48 presidio 48 bunkers 47 tunnels dug 47 gun emplacements 47 Confederates 46 caissons 46 Tamil Tiger guerrillas 46 palisades 46 allied warplanes 46 Faw peninsula 45 weapons smuggling tunnels 45 Fort Donelson 45 sandbag bunkers 45 Mallavi 45 crossbeams 45 medieval fortress 45 cypress swamp 45 earthen walls 45 fortified bunkers 44 Confederate armies 44 Loi Sam 44 Kajaki Dam 44 granite stones 44 concrete piers 44 Mushake 44 concrete pilings 44 bridge girders 44 dirt berm 43 Elephant Pass 43 Armoured vehicles 43 sand dredged 43 Abkhaz separatists 43 Merkava tanks 43 pontoon bridge 43 Armored vehicles 43 invading armies 43 earthen dams 43 trestle bridge 43 underground bunkers 43 coffer dam 43 roadbed 43 gunboats 43 Fort Necessity 43 al Faw peninsula 43 emerald mines 43 masonry walls 43 brick façade 43 Blockhouse 43 oyster reef 42 Bermel district 42 limestone exterior 42 Adampan 42 makeshift roadblocks 42 Rumangabo 42 amphibious assaults 42 Fort Moultrie 42 wooden pilings 42 equestrian statue 42 earthworks 42 steel trusses 42 revetment 42 airfields 42 tanks artillery 42 bridge abutments 42 concrete footings 42 Philadelphi route 42 stockade 42 A9 highway 42 Concrete barriers 42 tunnels 42 fieldstone 42 Nagarkovil 41 Jolan neighborhood 41 TRIPOLI Libya Moammar Gadhafi 41 Rwindi 41 encampment 41 adobes 41 earthen embankment 41 Ottoman rulers 41 fortresses 41 sandbag walls 41 Roman legions 41 M#A# Abrams tanks 41 Confederate submarine HL Hunley 41 shallop 41 arms smuggling tunnels