Fortification, Prehistoric -- See Also the narrower term Earthworks (Archaeology) Here are entered works on prehistoric and early earthwork remains. General works on forts and fortification, including earthwork fortifications, are entered under Fortification. Works on earthwork in engineering operations are entered under Earthwork.
Fortification, Primitive -- See Fortification Here are entered general works on forts and fortification, including earthwork fortifications. Works on earthwork in engineering operations are entered under Earthwork. Works on prehistoric and early earthwork remains are entered under Earthworks (Archaeology). --subdivision Defenses under names of countries and names of individual forts
Fortifications, Attack and defense of -- See Siege warfare Here are entered technical military works on siege warfare. General historical works on sieges are entered under Sieges.
Fortress warfare -- See Siege warfare Here are entered technical military works on siege warfare. General historical works on sieges are entered under Sieges.
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Forts -- See Fortification Here are entered general works on forts and fortification, including earthwork fortifications. Works on earthwork in engineering operations are entered under Earthwork. Works on prehistoric and early earthwork remains are entered under Earthworks (Archaeology). --subdivision Defenses under names of countries and names of individual forts