26 April

Treaty of London Concluded

23 May

Italy Enters War

24 May

First Shots Fired By Fort Verena in Trentino Fortress Zone

Late May

A-H Naval Raids Sink 14 Italian Merchantmen off of Albania

May-June

Limited Opening Italian Offensive to Seize More Defensible Positions

23 June

1^st Battle of the Isonzo Begins
Ends: 7 July

18 July

2^nd Battle of the Isonzo Begins
Ends: 3 August

18 October

3^rd Battle of the Isonzo Begins
Ends: 3 November

18 November

4^th Battle of the Isonzo Begins
Ends: 2 December

Winter

Ferocious Fighting on Marmolada Glacier; 10,000 on both Sides Die in Avalanches Throughout the Alps

16 January

Italian Troops Capture Oslavia NW of Gorizia

9 March

5^th Battle of the Isonzo Begins
Ends: 17 March

April

Mines Blow Peak off of Col di Lana in Grande Strada Region

11 April

Italian Skiatori Troops Capture Peak of Adamello

10 May

Battle of Asiago - A-H Offensive in Trentino Begins
Ends: 9 July

3 June

Asiago Front Stabilizes after Initial Austro-Hungarian Advances

2 August

Austrian Saboteurs Sink Battleship Leonardo DiVinci at Taranto

6 August

6^th Battle of the Isonzo Begins
Ends: 17 August

9 August

Gorizia Captured

29 August

Italy Declares War on Germany

14 September

7^th Battle of the Isonzo Begins
Ends: 17 September

18 October

8^th Battle of the Isonzo Begins
Ends: 22 October

1 November

9^th Battle of the Isonzo Begins
Ends: 4 November

16 November

Construction Begins on Monte Grappa Bastion

10 May

Italian Forces Recapture Mte Corno di Vallarsa, NW of Mte Pasubio

12 May

10^th Battle of the Isonzo Begins
Ends: 8 June

June

Extensive Mining Operations in Grande Strada Region

10 June

Battle of Ortigara Begins; Alpini Brigade Decimated
Ends: 19 June

17 August

11^th Battle of the Isonzo Begins
Ends: 12 September

24 October

Battle of Caporetto Begins; Massive Italian Collapse
Ends: 12 November

26 October

Capture of Mte Maggiore by Central Powers Forces Withdrawal to Tagliamento River

1 November

Tagliamento Line Untenable; Retreat to Piave Begins
Ends: 9 November

5 November

Rapallo Conference: Allied Effort to be Coordinated; French, British and American Forces to be Sent to Italy

9 November

General Diaz Succeeds Cadorna as Italian Commander-in-Chief

Late Nov-December

Mte Grappa Becomes Hinge of Italian Defense; Desperate Fighting Nearby

10 December

Italian Motor Torpedo Boat Sinks A-H Battleship Wien Near Trieste

18 January

President Wilson States Fourteen Points Supporting Italian Territorial Claims

13 March

Mte Pasubio Secured by Italian Army with Largest Mining Operation of the War

10 June

A-H Assault on Oranto Mine Barrage Turns to Disaster as Italian Torpedo Boats sink Battleship Szent Istvan

15 June

Austro-Hungarian Offensive Along Piave Line Begins

22 June

Austrian General Conrad von Holtzendorff Dismissed with Failure of Piave Offensive

23 October

Final Italian Offensive Begins in Trentino with Help of British and French Troops

October

Hungarian Troops Mutiny in Trentino

24 October

Advance from Piave Line Begins One Year after Caporetto

29 October

Italian Victory at Vittorio Veneto;
A-H Abandons Asiago Plateau

1 November

Pursuit Continues to Tagliamento and the Trentino

1 November

A-H Battleship Viribus Unitis Sunk with Limpet Mine at Pola

2 November

US Troops Fight in Only Action in Italian Front at Codroipo

3 November

Armistice Negotiated at Padua

4 November

Armistice Takes Effect

18 January

Start of Paris Peace Conference

28 June

Versailles Treaty Signed

10 September

Treaty of St. Germain