The weather
Flanders was notorious for wet weather that usually started in the late autumn and the plan was for the attack to start in July, after the successful but limited Battle of Messines in June. It was known that July and August were the most unpredictable months of the year and heavy thunderstorms were possible at any time. September was the best month as it was dry for one out of four years (1917 was one of those years!) October was usually the wettest month of the year and usually marked the beginning of winter.
The weather forecast before the battle opened on July 31st. was that "the weather is likely to improve generally but slowly" but although the average rainfall for the beginning of August was only 8mm. of rain, in fact 76mm. fell over the next 4 days! Whatever else he was, Haig was not a lucky General and the morale of the British Infantry was not good.
The German defences
The Germans were well aware of the strategic importance of Flanders and that is why this was the most heavily fortified part of their line. British security was very poor and the Germans knew all about the forthcoming battle and had taken their countermeasures well in advance.
It was no coincidence that they four days before the battle was due to begin they had carried out a tactical retreat from their front line back to the Passchendaele ridge. This left a zone of real and potential marshland in the low lying land between their new front line and the British.
Their new positions, the Hindenburg line, were a defence in depth of three lines, the third being beyond the range of the British guns. Between these lines was barbed wire, scattered concrete pillboxes and machine gun nests. The barbed wire funnelled the attackers into killing zones swept by machine guns and carefully registered by the artillery so that the attackers could be annihilated by a crippling concentration of shells.
(Tyne Cot was so called because British soldiers from the Tyne thought that a barn west of the Broodseinde-Passchendaele Road, looked like a local cottage, or cot.)
The Germans had developed a very effective technique of counterattacking as soon as they were driven out of their positions. They held fresh troops in reserve, specifically for the purpose of counterattacking, and these would be able to assault their exhausted enemy who would then be occupying the completely unfamiliar German trenches.
German artillery was also better than the British, it had a longer range and was more accurate and with better shells that were more likely to explode!
They also had the secret weapon of mustard gas delivered by shellfire. This was a liquid that caused blistering of the skin if touched or if the unfortunate soldier even walked through the zone of evaporation and the effect on the eyes was disastrous. If inhaled, it could cause pulmonary oedema. No antidote was to be found and after its first use in a barrage on July 26th., one man in six out of the 5th. Army who were assembling for the assault became a casualty! The assembling troops and artillery were under direct vision from the high ground of the Ridge and the German shellfire was used with great effect to disrupt Haig's preparations for battle; the effects of high explosive and gas bombardment forced Haig to make two delays from the original start date of the 19th. of July.
These effects of the geography and the weather were made many times worse by Haig's insistence on a preliminary bombardment of the German lines, even though he had been warned about this. Many shells fell short and the result was to turn a very difficult battle ground into an absolutely impossible one because it created a ground of quicksand-like proportions! Nevertheless his preliminary 2 weeks bombardment was so severe that one German division actually deserted its front. Unfortunately the German counter-battery fire was not affected and the Australian artillery suffered greatly as it had to be exposed on the open flats.
The Germans used a mixture of shells; high explosive, mustard gas and "sneezing gas". This latter was to make the gunners sneeze and lacrimate so much that they could not wear their gas masks and they then succumbed to the mustard gas.
The Battle
The official name of the battle is 3rd Ypres, but it is universally known as the Battle of Passchendaele because it was really a series of engagements with the one objective of taking Passchendaele Village and its Ridge.
It commenced on the 31st July with an attack on the Northern Flats at Pilcken to the left and the Gheluvelt Ridge to the right. The troops at Pilcken were to be supported by massed tanks and this attack was initially successful but, unfortunately, the right flank was held up and failed to reach its objective of the Gheluvelt Ridge.
Then at 4.00 PM the rain started. It lasted for days and of course the flooding made it impossible for the tanks to operate!
Although Haig had originally only proposed a short battle to break through the German Lines and this was now patently impossible, he still insisted on continuing the battle at Langemarck to the North. General Gough, whom Haig had chosen because he was the most aggressive of his Generals, actually advised Haig to cease the battle but Haig, inflexible as ever, continued the battle despite horrific losses for another three weeks until August 26th, before he closed it down.
He then decided to change the axis of attack from the North to the East and, when finer weather came, to order the assault on the ridge itself. He also changed Generals and General Plumer was put in charge of the next assault. Plumer, one of the most astute of the Generals, was an advocate of a smallscale limited advance under cover of a creeping barrage which would also prevent the German counterattacks. This would lead to a concentration of force on a narrow front, it would be easier to relieve the tired men and food and ammunition could readily be brought up to them. The men were to advance behind the shelter of the exploding shells and be hidden from the enemy by the smoke and dust of the barrage, however this would, of course, be impossible if it rained and the ground turned into liquid mud. In January 1917, Plumer gave orders for 20 mines to be placed under
German lines at Messines. Over the next five months more than 8,000 metres of tunnel were dug and 600 tons of explosive were placed in position.
Messines Ridge
In the winter of 1916, General Sir Herbert Plumer, began making plans for a major offensive at Messines. His main objective was to take the Messines Ridge, a strategic position
just south-east of Ypres, that had been held by the German Army since December,
1914. Employing 2,300 guns and 300 heavy mortars, Plumer began a massive bombardment of German lines on 21st May. Simultaneous explosion of the 19 out of 24 mines (ammanol explosive) took place at 3.10 on 7th June. The blast killed an estimated 10,000 soldiers and was so loud it was heard in London.
Under a creeping barrage, Plumer sent forward nine divisions of the British Second Army and they took all their preliminary objectives in the first three hours of the battle. Sir Hubert Gough and the British Fifth Army also took advantage of the situation to make significant territorial gains from the Germans. The German Army counter-attacked but by 14th June, the Messines Ridge had been completely occupied by British forces.
The battle for Messines Ridge was the first on the Western Front since 1914 in which defensive casualties (25,000) exceeded attacking losses (17,000).
The Battle of Menin Road on September 20th. was the first of three famous victories using the new tactics. At dawn on that day, after a 5 day bombardment, the Anzacs made a successful attack with two Australian Divisions side by side and supported by a Scottish Division on their left.
The Australians reached the lower part of Polygon Wood and Black Watch corner, this cost them 5000 casualties. They were then relieved, the captured ground was consolidated and a supporting Railway line and plank roads were quickly laid down so that supplies could reach the new front line.
On September 26th. the weather was still fine and the ground had dried out; on that day Plumer's rolling barrage worked well and the Anzacs were able to advance concealed by a barrage "like a Gippsland Bushfire" as Bean put it. The 4th. Australian Division then took the rest of Polygon Wood, or what was left of it, and the Butte (which was the local Rifle club's Rifle range; on top of the Butte is now the A.I.F. 5th. Division memorial). They had thus reached a position where they could strike at the main Broodseinde Ridge. They then went onto win this ridge on October 4th.
When the Australians reached the Ridge, they were able at long last to see the German rear lines stretching before them, the only obstacle to their success was the German occupied Village of Passchendaele to their north. These three smashing victories vindicated General Plumer's step by step technique and were possible only because the weather had been dry enough to allow the quagmire to drain away, but it started to rain again on the 5th., the next day.
It was not a shower but a steady soaking downpour. Haig however, encouraged by the three successes, ignored the rain and decided to make a further attempt to break the Germans on the Ridge, even alerting the cavalry to be ready to follow up! He ordered the Anzacs to take Passchendaele on October the 9th. even though the wind and rain had now developed into a gale force storm. He appeared to be quite unaware of the appalling conditions on the front or that the wire had not been cut and the Germans had replaced their soldiers with fresh support troops in their relatively dry pillboxes. His reason for persisting was to allow his troops to winter on the ridge, without the Germans overlooking them, and with drier conditions once the front line was out of the swamp.
The Australians attacked and at Augustus Wood, near the Tyne Cot. Unfortunately the British troops on their right were unable to support them and the Australians were forced to retreat all the way back to the mudholes that had been their front line. By now, their artillery was running out of ammunition and their shells were burying themselves in the liquid mud and expending themselves relatively harmlessly in a cloud of steam and a fountain of water.
Yet even now Haig went on with the battle, even though the rain and bitter cold had set in and on October the 12th. This lunatic ordered another attack, which was fated to fail miserably, with men struggling up to their knees and waists in the dreadful stinking mud and with their rifles and machine guns clogged with it. The only solid objects in this endless waste of cratered mud were the German concrete pillboxes with their machine guns which were protected from the mud and which operated only too well.
This attack cost 7000 casualties, The Australian 3rd. Division lost 3199 lives in the 24 hours of this attack. The exhausted Australians were at last withdrawn but Haig was still pathologically obsessed with capturing Passchendaele Village and ordered the Canadians to take over the battle. However their General Elliot, who was one of the few of Haig's Generals who retained his common sense, refused to move until the weather had eased and adequate supplies were available.
Conclusion
Eventually, on November the 12th. the Canadians took Passchendaele, or what was left of it, and the battle was finally over. Air photographs of Passchendaele were taken after the battle; it is estimated that half a million shell holes could be seen in the half square mile of the picture!. This, presumably, was where Haig expected his troops to stay. And so the British gained their objective, although it was quite useless to them in terms of the original plan; the attack from the sea at Nieuport had been abandoned, and there was no hope of breaking through to the German occupied Channel ports, which were eventually blockaded by hulks sunk at Zeebrugge.
Passchendaele cost over half a million lives over its 3 months. The Germans lost about 250,000 lives and the British 300,000 of whom 36,500 were Australian. 90,000 British or Australian bodies were never identified, 42,000 were never recovered; these had been blown to bits or had drowned in the dreadful morass. Many of the drowned were exhausted or wounded men who had slipped or fallen off the duckboards and were unable to escape the filthy, foul-smelling glutinous mud, sinking deeper to their deaths as they struggled.
For 76 years, the name of Passchendaele has been synonymous with all that is loathsome in war, it certainly represents the futility and stupidity of warfare.
Siegfried Sassoon wrote:
"...I died in Hell
(they called it Passchendaele) my wound was slight
and I was hobbling back; and then a shell
burst slick upon the duckboards; so I fell
into the bottomless mud, and lost the light"
but surely Passchendaele must also recognise the extraordinary bravery of the fighting soldiers who attempted what was quite obviously impossible but by superhuman efforts of will actually achieved success. That their efforts were squandered by their High Command can in no way minimise their incredible accomplishments.