Geometry of War - http://www.mhs.ox.ac.uk/geometry/content.htm Online catalogue for an exhibit at the Museum of the History of Science, Cambridge, England relating to artillery and fortification during the 16th and 17th centuries. Photographs of range-finding and like instruments, prints from contemporary books, catalogue essays.
17th Century Reenacting & Living History Resources - http://www.lukehistory.com/resources/ 17th century, Thirty Years War and English Civil War pamphlets, news sheets and other documents in full text format.
Marshal Vauban - http://www.geocities.com/Pentagon/6750/ Dedicated to Louis XIV's fortifications engineer. Biography, description of fortifications, bibliography and fortifications links.
The Spanish "Tercios" 1525 - 1704 - http://www.geocities.com/ao1617/TercioUK.html Describes the organization, tactics and battles of the Spanish army in its golden age. English and French.
The Pike and Shot Society - http://www.pikeandshotsociety.org/ International organization that promotes interest in the warfare of the Early Modern Period, 1400 - 1721.
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