Ancient Physical Security

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Time
2 hours 33 minutes
Difficulty
Beginner
CEU/CPE
3
Video Transcription
00:00
Hello and welcome back to cyber is physical security for end users. Course. This is Lesson one doc to ancient physical security.
00:11
I have three objectives for this lesson, and they are as follows. We're going to discuss the concept of defense in depth,
00:18
also known as layered defense. ING
00:22
will discuss the purpose of physical security in ancient times,
00:27
and we'll look at many of the components that made up ancient layered defenses.
00:36
Now, if there's anything I want you to take away from this
00:39
lesson, it's this concept right here, defense in depth.
00:43
The concept of defense in depth is how we employ multiple security measures in concert with one another to ensure that
00:53
the thing we want to protect is truly protected from any kind of threat.
01:00
Now
01:00
the reality is, is that no single measure of defense can answer every kind of threat.
01:08
So a planner will instead use many types of defenses in concert with one another to ensure that the people and the property that they want to protect will be protected
01:23
from any threat.
01:29
Why did they need the physical defenses in the Middle Ages?
01:33
The reality was there were no organized national armies.
01:38
There were no police forces that could
01:41
patrolling area and protect people from harm.
01:44
Instead,
01:46
local kings
01:48
or nights were given plots of land on which to build
01:53
some kind of walled defense
01:57
to protect the people
02:00
from Raiders
02:01
or sieges from the from the armies of other countries.
02:10
So when they were building those cities
02:14
for those world strongholds,
02:16
what consideration went into
02:20
where they would actually build it? Well, there are three words
02:23
location, location, location.
02:28
Now I know that sounds a little corny,
02:30
but the reality is, is that natural terrain was the cheapest and simplest first layer of defense
02:37
that these people could use when protecting what was important to them.
02:44
They could use things like high ground
02:46
to improve their ability to be able to see the enemies approach. Long before he got to the walls of the town,
02:55
they used open space to create that distance between the attacker without and those they were protecting from with in within.
03:06
They used uneven ground to slow the approach and to improve their amount of time or increase the amount of time
03:13
that they had to react to the enemy forces.
03:15
And they would also use bodies of water to keep that distance. Once
03:22
the adversary was at the gates,
03:24
let's look more closely
03:28
at the defenses and how they could be used.
03:32
Well, let's start with the bodies of water. Now, most cases
03:38
we be talking about
03:39
two types
03:40
of natural of bodies of water. First, those that are man made,
03:46
as in the picture that we see in the lower right hand corner.
03:50
Yeah,
03:52
natural rivers and lakes. To be used as
03:57
defences against an approaching adversary
04:01
like I mentioned earlier, creates space and creates that distance. We're now the
04:08
the adversary has difficulty scaling the walls because he asked across a body of water before he can actually even approach the wall.
04:17
It also restricts the ways in the avenues of approach that the adversary can use.
04:24
He can't massive strength against the wall to knock it down or to scale it
04:33
walls and watchtowers.
04:35
Now we saw in the last picture and we can see on the last slide, and we can see in the graphic here
04:42
that walls and towers provide a great natural defense to shield the people within.
04:48
It also protects the buildings within the castle or stronghold
04:53
and it gives the defenders instant high ground, even if the the castle does not is not built on a hill
05:01
or some kind of high point.
05:03
The towers gave them elevation over the land.
05:09
It allowed them to see who was coming and going and give them a vantage point from which to watch the enemy.
05:16
A war watchtower also gave them hardened position and natural defence against an attack from without
05:30
now, as just kind of obvious,
05:33
no walled city could survive if there was no way to get in and out
05:40
off the town itself. They needed Ingress is, and egress is in the walls of the strong holder city
05:47
in order to allow the natural flow of traffic.
05:51
But in times of strife, when Raiders would would
05:56
tried to pillage the town or in Enemy's forces were there to siege the town,
06:02
they needed to harden those effective weak points.
06:05
They did this through iron gates,
06:09
reinforced our reinforced doors
06:12
in order to protect and prevent
06:15
the enemy from entering.
06:17
You can see in the picture here how they use the med metal, poor collis, or gate to that they could drop down
06:26
if enemies were approaching,
06:31
and no physical defenses would be complete without having actual people there
06:39
to
06:41
attack the return fire on the enemy
06:45
or two.
06:46
Just defend the walls.
06:48
Cities needed defenders, and defenders needed training.
06:54
They needed equipment. They needed arms to fight off the attacker.
06:58
They also needed money,
07:00
and they needed tactical leadership in order to be able to perform their intended role to protect the town or stronghold.
07:14
In this video, we talked about the concept of defense in depth
07:17
or layered defenses.
07:19
We looked at the purpose of physical security and the role it played in ancient times,
07:25
and we looked at the different components of ancient, layered defenses,
07:30
thank you very much and look forward to seeing you in the next lesson.
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