Fortify
A Dictionary of Military Terms · 1918 · p. 7
To strengthen and secure by forts or batteries, or by surrounding with other military works.
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The American Dictionary and Cyclopedia (1910)
Chamber's Twientieth Century Dictionary (1908)
A Military Dictionary and Gazetteer (1881)
Re-fortify
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A Military Dictionary and Gazetteer (1881)
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