Defensive Obstacles
Just as modern military engineers enhance field fortifications with obstacles such as barbed wire, Medieval engineers used a number of obstacle types including abatis, caltrops, cheval de frise, and trou de loup.
Read more about this topic: Medieval Fortification
Famous quotes containing the words defensive and/or obstacles:
“This royal throne of kings, this sceptred isle,
This earth of majesty, this seat of Mars,
This other Eden, demi-paradise,
This fortress built by nature for herself
Against infection and the hand of war,
This happy breed of men, this little world,
This precious stone set in the silver sea,
Which serves it in the office of a wall,
Or as a moat defensive to a house
Against the envy of less happier lands;
This blessèd plot, this earth, this realm, this England.”
—William Shakespeare (1564–1616)
“Life is like walking along a crowded street—there always seem to be fewer obstacles to getting along on the opposite pavement—and yet, if one crosses over, matters are rarely mended.”
—Thomas Henry Huxley (1825–95)