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  • trial. World War one was a static,

  • grueling war. Weapon technology had

  • advanced quickly, but the technology to

  • carry these weapons lagged behind,

  • resulting in bloody face offs between

  • entrenched armies. No battle embodies this

  • ghastly form of war more than the Battle

  • of Verdun on the Meuse river, which was

  • the longest battle of world war one:

  • lasting 300 days with over 1 million

  • casualties, a stalemate where territory

  • was won with the lives of the men brave

  • enough to push forward into the storm of

  • bullets and explosive shells raining

  • from all directions. 26 years later the

  • Germans crossed this same river in a

  • single day empowered by immense

  • improvements in motorized vehicles. Most

  • notably the tank.

  • The Germans created a new form of

  • warfare where battles were fought and

  • won before the victim even understood

  • what was happening. With these machines

  • in your arsenal, trench warfare was

  • obsolete. War was no longer

  • two-dimensional. In one moment you were

  • ducking for cover anticipating an

  • explosion as the whir of swarming dive

  • bombers filled your ears, the next you're

  • facing a wall of armored vehicles. This

  • of course was the infamous blitzkrieg

  • which Germany employed to take over the

  • majority of Europe with eerie efficiency.

  • Europe would get its first taste of this

  • lightning war on September 1st, 1939 when

  • 1.5 million German troops invaded Poland.

  • The German invasion of Poland was a

  • battle of epic disproportions. The

  • Luftwaffe flew ahead armed with Younker

  • 87 Stuka dive-bombers which were fitted

  • with horrifying sirens (which were simply

  • high revving propellers fitted to the

  • landing gear of the plane). They were

  • designed to cause mass panic and fear

  • among civilians and enemy troops alike.

  • They destroyed strategic positions and

  • caused civilians to flee and interfere

  • with supply lines, softening the border

  • defenses before the German armoured

  • divisions broke through, like a spear

  • point through inadequate armor. Followed

  • by motorized German infantry who formed

  • a supply column reinforcing the

  • frontline with fuel and ammunition. Never

  • stopping to celebrate, always pushing

  • forward and keeping the pressure on. Any

  • troops that did not

  • retreat fast enough where encircled and

  • decimated this pattern was repeated. And

  • in a single week, German troops advanced

  • 225 kilometers onto Warsaw's doorstep,

  • despise Poland mobilising 1 million men

  • to fight back. One famous battle on this

  • first day of war, often mistold,

  • involved a valiant Calvary rush of the

  • Polish army on the German infantry,

  • dispersing them and delaying their

  • advancement long enough to allow the

  • Polish first rifle battalion to retreat.

  • Only then German tanks appeared and

  • fired upon them forcing the horsed units

  • to retreat. German propaganda announced

  • the stupidity of Polish commanders

  • sending cavalry armed with sabres and

  • lance's against armoured vehicles, when

  • in reality they were armed with

  • anti-tank rifles which were capable of

  • penetrating 15mm of armor

  • at 300 metres at 30 degrees. The Panzer 1

  • and 2 used in this battle were

  • vulnerable to this weapon. On September

  • 28th, four weeks after the first shot was

  • fired,

  • the Polish capital surrendered to the

  • relentless German siege, while Russia

  • took the east. This proved the

  • effectiveness of the blitzkrieg and sent

  • shockwaves through Europe. On May 10th

  • 1940, Germany launched an invasion of the

  • low countries of Holland, Belgium, and

  • Luxembourg. Luxembourg with its 400

  • infantry and 12 cavalry fell in a

  • single day. Belgium's defense, centered

  • around the Eben-Emael fort with

  • 1200 men, also fell in a single day. This

  • fortress was one of the strongest in the

  • world but was created with 2D-strategic

  • maneuvers in mind. It took about 500

  • German special forces landing with

  • gliders to disable Eben-Emael's major

  • defenses. They removed explosive charges

  • from nearby bridges, ensuring a clear

  • route for German reinforcements. Others

  • landed inside the force planting their

  • own explosive charges and throwing

  • grenades into bunkers and destroying

  • artillery. Where they couldn't overcome

  • defenders, they called for airstrikes

  • from Stuka dive bombers. Holland,

  • despite having advanced warning of the

  • imminent invasion, were caught off guard

  • by merciless bombing of their cities by

  • the Luftwaffe, followed by the deployment

  • of the 7th and 22nd Airborne Division's.

  • Germany now had a direct northern route

  • into Franc. The Allies were prepared for

  • this threat and focused their best troops

  • on the northern border.

  • Leaving the heavily fortified border

  • between Germany and France relatively

  • low-manned. The invasion of the low

  • countries was not intended as an

  • invasion route. It was a diversion and on

  • May 12th the spearhead of the German

  • blitzkrieg broke through what was once

  • called the impenetrable defense of the

  • rough mountainous and heavily wooded

  • area of the Ardennes. Quickly enveloping

  • and trapping the 400,000 Allied troops

  • stationed to defend the assumed invasion

  • from the north. Culminating in the Battle

  • of Dunkirk, where thousands of civilian

  • ships sailed from Britain to save

  • stranded soldiers. A month later, on June

  • 22nd the French surrendered to Germany. The

  • French were simply not prepared for the

  • speed and ferocity of this type of

  • warfare, despite having tanks more than

  • capable of taking on the German Panzers

  • in one-on-one battle. For example the

  • French S-35 was arguably the best tank

  • at the outbreak of the war. It had good

  • balance between Armour mobility and

  • firepower. It was more than capable of

  • taking on the Panzer ones and twos that

  • formed the brunt of the armoured

  • divisions, and it's forward-facing armor

  • could even withstand direct hits from

  • the German heavy tank the Panzer 4. Where

  • the s-35 failed was its lack of numbers:

  • with only 440 built. Had the French been

  • prepared, and built enough tanks, they

  • could have defeated the German invasion.

  • The Germans were more than aware of this

  • outclassing of their tanks, and led them

  • into pushing further to create larger

  • tanks with thicker and thicker armor,

  • and larger and larger guns. They pushed

  • the boundaries and experimented with

  • gigantic tanks, like the Panzer VIII, which

  • still, to this day, is the heaviest fully

  • enclosed armored fighting vehicle ever

  • built. Real Life Lores just uploaded a

  • video about the crazy designs of tanks

  • the Germans came up with. Here he is to

  • tell you a little more about them. [Real Life Lores:] The

  • Panzer VIII Maus weighed 188 tons: over

  • three times heavier than a TIger I tank.

  • It's 128 millimeter main gun was enough

  • to destroy all allied armored vehicles

  • then in service at ranges exceeding

  • 3,500 metres. Only

  • two were ever built, near the end of the

  • war, but the Germans had far more

  • ambitious plans than even the Maus tank.

  • The Landkruezer P.1000 Ratte was a super

  • tank designed in 1942 that was planned

  • on weighing 1,000 tons. This behemoth

  • would have

  • then armed with naval artillery and be

  • equipped with 25 centimeters of hardened

  • steel armor. It would have had a crew of

  • over 40 men operating it, had it ever

  • been built. But as with most insane Nazi

  • engineering ideas, the Landkruezer

  • remained a blueprint for the entirety of

  • the war. [Real Engineering:] This wild experimentation could

  • have been their downfall: constant

  • iterations and improved technology kept

  • production costs and [production] time high.

  • Ultimately Germany had some of the most

  • advanced tanks, but too few to take on

  • what was to come.

  • Because the Russians were busy building

  • a staggering secret army of t-34s. This

  • haunting recording of Hitler's normal

  • speaking voice captures his shock at the

  • sheer number of tanks encountered on the

  • Eastern Front.

  • At this stage Hitler knew the might of the

  • German blitzkrieg had met its match.

  • Germany had focused so much of the time

  • trying to create the perfect war machine,

  • while Russia saw how to beat the

  • blitzkrieg: in sheer numbers,

  • determination, armor, and firepower .Russia

  • could build enormous amounts of the t-34

  • partially because of the insanely huge

  • factories, but also because of the

  • Russian ethos of quantity over quality.

  • Russian tanks were crudely constructed,

  • welding was poor, and armored plates

  • rarely fit together: a flaw which the

  • Japanese exploited by throwing Molotov

  • cocktails at the tanks which then

  • dripped flaming fuel onto the crew.

  • The pins that held the track of the t-34

  • were not held in place either. Most tanks

  • had some form of locking mechanisms that

  • kept the pin in place, but the t-34 pins

  • were free to float. To prevent them from

  • falling out, the t-34 simply had a hard

  • stop in the path of the track that

  • hammered the pins back into place as they

  • passed by. A

  • crude, yet effective, measure to keep the

  • manufacturing time and cost down. This

  • crude construction did not stop this tank

  • from being a formidable opponent.

  • In fact the t-34 is one of the standout

  • tanks of World War two.

  • It had heavily sloped armor which both

  • help deflect projectiles but also

  • increase the effective thickness of the

  • armor, thanks to a bit of trigonometry: if

  • we take the 47 millimeter thick front

  • hull armor of the t-34 its Armour its

  • simply 47 millimeters thick

  • when vertical, but if we begin to tilt it

  • its effective thickness equals the

  • original thickness divided by the sine

  • of the tilt angle. The front hull armor

  • had a slope of 60 degrees, making this

  • effective thickness 94 millimeters:

  • double its actual thickness. This

  • combined with the enormous gun, allowed

  • the t-34 to take on any tank on the

  • battlefield. By the end of the war

  • 8/10 German soldiers died fighting on

  • the Eastern Front.

  • One of the standout battles on the

  • Eastern Front, if not in the history of

  • mankind, was the Battle of Kursk. While

  • D-day, Stalingrad, the Battle of the Bulge

  • and the Battle of Britain are hailed as

  • the great turning points of the war, as

  • they should, they all pale in magnitude

  • to the Battle of Kursk. This battle

  • epitomizes the resilience of the Russian

  • people. Kursk sat in the middle of a

  • bulge on the eastern front. A bulge that

  • needed to be eliminated to prevent

  • Russia from mounting a counter-offensive

  • on the Germans rear. The strategic

  • importance of this battle was known to

  • both sides.

  • Hitler had told Heinz Guderian, the

  • mastermind of the German blitzkrieg, that

  • the thought of the battle made him sick to

  • his stomach every time he thought about

  • it. Russia had dug deep in Kursk. Every

  • single citizen was involved in the war

  • effort with near 5000 kilometers of

  • trenches circling the city,

  • 500,000 each of anti-tank and anti-personnel

  • mines, with obstacles torn through barbed

  • wire: and this was just their passive

  • defense! Russia had amassed 1.3 million

  • soldiers, 20,000 artillery pieces, 3,600

  • tanks, and 2,600 aircraft.

  • This was Russia's last stand. Hitler

  • ordered 900,000 soldiers to the region,

  • drawing men away from the Western Front

  • as the Allies were not expected to

  • attack anytime soon, along with 10,000

  • artillery guns, 2,700 tanks, and 2,000

  • aircraft. This was a third of Germany's

  • remaining military strength, concentrated

  • in a single area. What led with the

  • largest tank battle in history, and a

  • battle that ultimately blunted the

  • spearhead of the German blitzkrieg. Day

  • after day, Germany attempted to break

  • through the Russian defense, only to be

  • repelled time after time. The

  • Luftwaffe was prevented from gaining air

  • superiority by the Russian Air Force.

  • While German tanks were crippled by the

  • combined onslaught of anti-tank mines

  • infantry artillery fired and the

  • never-ending barrage of t-34s. All the

  • while partisan citizens to the rear

  • disrupted the already dodgy supply lines

  • feeding the German front. This was the

  • last step for the Nazis took. Russia had

  • endured the storm.

  • Germany would be on the back foot for

  • the rest of the war and the race towards

  • Berlin between the Allies and the

  • Soviets was on. Many of you asked me what

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This episode of real engineering is

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How Russia Stopped The Blitzkrieg

  • 17 0
    joey joey に公開 2021 年 06 月 03 日
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