http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f1-subject=Attack and defense (Military science);f2-subject=Fortification;smode=simple;subject=Fortification;subject-join=exact) http://catalog.wrhs.org/collections/search?docsPerPage%3D100;f1-subject%3DAttack%20and%20defense%20(Military%20science);f2-subject%3DFortification;smode%3Dsimple;subject%3DFortification;subject-join%3Dexact Results for your query: docsPerPage=100;f1-subject=Attack and defense (Military science);f2-subject=Fortification;smode=simple;subject=Fortification;subject-join=exact Thu, 01 Jan 1970 12:00:00 GMT Summary of the course of permanent fortification and of the attack and defence of permanent works: for the use of the cadets of the U.S. Military academy. Mahan, D. H. (Dennis Hart), 1802-1871 http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT A treatise on field fortification: containing instructions on the methods of laying out, constructing, defending, and attacking intrenchments; with the general outlines also of the arrangement, the attack and defence of permanent fortifications. Mahan, D. H. (Dennis Hart), 1802-1871 http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT