ABSTRACT
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1914
August
3
Germany declares war on France
4
Britain declares war on Germany
7
British Expeditionary Force begins to land in France
26–29
Russians defeated by Germans at battle of Tannenberg
28
Battle of Heligoland Bight
September
5
Britain, France and Russia sign Pact of London
6–9
German advance on Paris halted at Battle of the Marne
October
12 (to 17 November)
German advance on Channel ports halted at First Battle of Ypres
29
Turkey enters the war on the side of the Central Powers
November
1
British troops land in Mesopotamia Battle of Coronel
December
8
Battle of the Falklands
16
German battle-cruiser attack on northeast coast towns
1915
January
24
Battle of Dogger Bank
February
4
German declaration of submarine war zone around United Kingdom (suspended 30 August 1915)
19 (to 19 March)
Allied naval assault at Dardanelles fails
March
10
Britain promises Constantinople to Russia at end of war
10–13
Battle of Neuve Chapelle
April
25
Allied troops land at Gallipoli. Italy signs Treaty of London
May
5–6
German breakthrough at Gorlice-Tamow
9
Battle of Festubert
August
5
Germans occupy Warsaw
6–15
Failure of Suvla Bay operation at Gallipoli
September
23
Bulgaria joins Central Powers, who attack Serbia
October
5
Anglo-French landing at Salonika
December
2
Central Powers occupy Serbia
8 (to 9 January 1916)
Evacuation of Gallipoli
1916
February
21 (to 18 December)
Battle of Verdun
March
29
Submarine war zone reactivated with some limitations (suspended 20 April)
29
Fall of Kut-el-Amara
May
31
Battle of Jutland
June
4
Arab Revolt begins
4 (to 7
Brusilov offensive on Russian front
September)
July
1 (to 17
November)
Anglo-French offensive on the Somme
August
27
Romania joins the Entente
December
6
Germans occupy Bucharest
1917
February
1
Completely unrestricted submarine warfare declared
March
12
First Russian Revolution
April
6
America enters the war
16–20
Nivelle offensive fails
27
Convoy system introduced
July
31 (to 6 November)
Third Battle of Ypres (Passchendaele)
October
24 (to 12 November)
Italians defeated at Caporetto
November
7
Bolshevik Revolution in Russia
20 (to 3 December)
Battle of Cambrai
December
9
British capture Jerusalem
15
Russians sign armistice with Germany
1918
March
3
Treaty of Brest-Litovsk
21 (to 4 April)
Start of German western offensive
May
5
Germans occupy Sebastopol
27 (to 3 June)
Battle of the Aisne
August
8
Second Battle of Amiens. The ‘black day’ of the German army
September
15–29
Allied offensive at Salonika forces Bulgaria to sue for peace
18 (to 7 October)
Allied troops on Western Front break through the Hindenburg line
30
British troops occupy Damascus
October
24 (to 4 November)
Italians defeat Austrians at Vittorio Veneto
29
Mutinies in German High Seas Fleet
30
Turkey signs armistice
November
3
Austria signs armistice
11
Germany signs armistice
21
German High Seas Fleet interned at Scapa Flow
