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The War on the Western Front in 1917

SPRING

Second Battle of Arras (9 Apr-16 May 1917)

Background

    •  Fr., Br. & Russ. planned a joint attack, but Russ. withdrew & Ger. pulled back to Hindenburg Line, ruining plans.

    •  Despite talk of 'war of attrition', commanders still sought a breakthrough.

    •  Fr. Gen. believed he could break through on River Aisne, persuaded Britain to launch a diversion at Arras.

Events

    •  Br. made longest advance since trench warfare began, incl. Canadian victory at (9-12 Apr).

    •  Helped by:

          1. Army Improvements: better tactics ( barrage, 'leap ', 'bite & ', mining, aerial recon). Canadian cmdrs studied Verdun & Somme.

          2. Ger. mistakes: struggling to org. new defences & saw Vimy Ridge as less imp., so did not try to recapture.

Results

    •  Cost 160k Br. casualties. Battle bogged down into costly, pointless attacks. Haig called it off.

         

FLANDERS

Two main causes:

          1. Nivelle's Aisne Offensive (Apr-May) failed → (nearly 50% of Fr. infantry divs refused to attack). Allies looked to Britain to divert Ger. forces.

          2. Ger. campaign caused shortages in Britain. Success along the coast could deny them Ostend & Zeebrugge. Haig also hoped for a breakthrough.

         

Battle of Messines (7-14 Jun 1917)

    •  Attack launched at as it could be organised quickly & was a key vantage point.

    •  Success due to Army Improvements: detailed maps, better , mining, tanks & overhead barrage.

    •  Ger. losses: c.25k (7k POWs, 3k missing). Allied losses: 25k (notably at ).

         

Battle of Passchendaele (Jul-Nov 1917)

Background

    •  Third Battle of Ypres (‘’).

    •  v. dangerous – surrounded on 3 sides by Ger. artillery. Ger. trenches () v. strong.

    •  Lloyd George & Foch opposed attack, preferring to wait for US forces (declared war in Apr). Haig pushed ahead.

    •  Haste may be due to Russ. defeat (1917) → battle-hardened Ger. troops could soon arrive from Eastern Front.

Events

    •  Series of battles (Pilckem Ridge, Langemarck, Menin Rd, Polygon Wood) – some success, but all v. costly.

    •  Fighting infamous for deep mud (as in 2008 film).

Results

    •  Casualty figures debated, but both sides lost at least 250k men.

    •  Regarded as Allied success as Ger. could not afford such losses.

    •  Though planned as a breakthrough, it became a war of attrition, wearing down the Ger. army.

         

Battle of Cambrai (20 Nov–3 Dec 1917)

Background

    •  Cambrai = key Ger. supply/comm. hub. Attack later criticised but was logical.

    •  Surprise attack w. 476 tanks smuggled in (labelled '').

    •  Used latest ‘’ tactics (all combat branches co-ordinated).

Events

    •  1st day = major success, 5-mile advance. Some Ger. troops fled.

    •  Tanks slow & vulnerable – 280 destroyed or broke down. Over half lost by day’s end.

    •  Ger. counterattack used new ‘’ tactics. Br. badly defeated. Haig ordered withdrawal.

Results

    •  Br. casualties: 75k. Ger.: just over 50k.

    •  However, Cambrai marks end of static warfare (1915–17) w. new tactics on both sides.