Wednesday, August 16, 2017

News You Can Use: How To Storm A Castle

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From Popular Mechanics:
William Gurstelle is the author of Defending Your Castle: Build Catapults, Crossbows, Moats, Bulletproof Shields, and More Defensive Devices to Fend Off the Invading Hordes.
There is a lot more to besieging a walled fortress than simply running around with ladders. 
It's castle-storming season on Game of Thrones. Daenerys Targaryen's elite Unsullied troops managed to sneak in and conquer Casterly Rock without having to climb its walls on horrible ladders. The Lannister army they'd intended to attack actually marched south and laid siege to Highgarden, though the battle happens off-screen. And while Daenerys of the very long name managed to catch the Lannister loot train out in an open field and slaughter them, she would need to mount a much-discussed attack on King's Landing and its Red Keep to remove Queen Cersei from power.

There's perhaps no military action older than castle storming. Whether you're talking about paleolithic Scotland, medieval France, or the fictional kingdoms of Westeros, the pattern appears to be the same: As soon as people had any possessions at all, other people have coveted the lands and possessions of their neighbors. And so, the people with lands and possessions built castles for protection. Siege warfare against those castles is brutal and blunt. It's a style of fighting characterized by a combination of ungodly long, boring waits punctuated by short spurts of terrifying action.
There is a lot more to besieging a walled fortress than simply running around with ladders. A lot more.

It takes more than a forbidding appearance for a castle to keep attackers at bay. The first castles were merely earthen heaps surrounded by a wooden palisade wall. But they quickly got much better. Over time, a body of castle-building knowledge arose and all good castles more or less followed the same rules.

For example, a well-designed castle is never square. The corners on a square castle are vulnerable to attack because the ninety degree angle makes it difficult to mass defenders at those points, so any good field general would concentrate his attacking forces there. To counter this, castle designers erected protruding towers at intervals, giving defenders a redoubt where they could shoot downward with a wide field of view.

In addition, those towers were built as tall as possible. When hurling machines like catapults and trebuchets are forced to shoot in high arcing trajectories, they lose much of their effectiveness. Plus, when defenders drop rocks from high elevations, they have a lot more smashing power.

Typically there was an elevated walkway just behind the top of the castle walls called a rampart. There were openings in the upper walls, accessible to the men on the ramparts, called embrasures, through which archers could shoot.

The main way into a castle, of course, was through the gate. Gates were always exceedingly well protected. Typically, large strong towers flanked both sides of the gates, and the towers were always manned with defenders. The entrance to a castle was often a steel grate called a portcullis, a walkway, and then another portcullis. Above the walkway were the "murder holes," openings through which rocks and spears could be thrust down on attackers trapped between the portcullis grates....MUCH MORE