Words Week XIII

ARCHER JONES,
The Art of War in the Western World
OFFA'S DYKE         DANEWIRKE
ALFRED, KING OF WESSEX & "ENGLAND" (d. 899)          HENRY I "The Fowler", KING OF EAST FRANCIA
BURHS/BURGI               BURGHAL HIDAGE ?893            "DEFENSE IN DEPTH"               DANEGELD
FIDELITY OATH ("Fealty")               "TREASON", "FELONY"
VASSALS
ASSIZE OF ARMS 1181               ACT FOR THE MAYNTENNANCE OF ARTYLLERIE 1547
COMITATUS (= 1. companions of a Late Roman or Early Medieval Lord; 2. county or shire)
HARRYING STRATEGY
JOUST            STIRRUPS               "CHANSON DE GESTE" (Epic poem of deeds, as opposed to ROMANCE)
LYNN WHITE Jr.,
Medieval Technology and Social Change (1964)
VEGETIUS            FEIGNED RETREAT         PIKES               CALTROPS
HOST (O Fr. "Ost")
SIEGE ENGINES             TRACTION TREBUCHET
PEEL TOWERS            CASTLES