1915 Battles of World War I

World War I (WWI or WW1), also known as the First World War, or the Great War, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918. More than 70 million military personnel, including 60 million Europeans, were mobilized in one of the largest wars in history.

1915 January

Battle of Jassin (18 January 1915): The German commander, Paul Emil von Lettow-Vorbeck, decided to attack Jassin in order to prevent further danger to Tanga, which lay more than 50 kilometres to the south and had previously been successfully defended against a British attack.

1915 February

Defense of the Suez Badick (3 February 1915)
Second Battle of the Masurian Lakes (7 February 1915): The offensive was intended to advance beyond the Vistula River and perhaps knock Russia out of the war.
Dardanelles Bombardment (19 February 1915)

1915 March

Battle of Neuve Chapelle (10 March 1915): The battle was intended to cause a rupture in the German lines, which would then be exploited with a rush to the Aubers Ridge and possibly Lille.

1915 April

Battle of Shaiba (12 April 1915): By capturing Basra, the British had taken an important communications and industrial centre. The British had consolidated their hold on the city and brought in reinforcements.
Second Battle of Ypres (22 April 1915): It was the first mass use by Germany of poison gas on the Western Front.
Battle of Gravenstafel (22 April 1915): German troops carried 5,730 gas cylinders, weighing 90 pounds (41 kg) each, to the front by hand. The cylinders, opened by hand, relied on the prevailing wind to carry the gas towards enemy lines.
Battle of St. Julien (24 April 1915): Fisher went out twice with a handful of men and a Colt machine gun, preventing advancing German troops from passing through St. Julien into the rear of the Canadian front line.
Landing at Cape Helles (25 April 1915): The landing at Cape Helles was part of the amphibious invasion of the Gallipoli peninsula by British and French forces.
First Battle of Krithia (28 April 1915): The attack broke down due to the defensive power of the Ottoman opposing forces, poor leadership and planning, lack of communications and exhaustion and demoralisation of the troops.

1915 May

Battle of Eski Hissarlik (1 May 1915): The Battle of Eski Hissarlik took place on 1 May 1915 and was an attempt made by the Ottomans, commanded by Liman von Sanders to push Allied (British and French) troops back to the sea.
Second Battle of Krithia (6 May 1915): The village of Krithia and neighbouring hill of Achi Baba had to be captured in order for the British to advance up the Gallipoli peninsula to the forts that controlled passage of the Dardanelles straits.
Battle of Frezenberg (8 May 1915): The German attack began on 8 May with a bombardment of the 83rd Brigade in trenches on the forward slope of the ridge, but the first and second infantry assaults were repelled by the survivors.
Battle of Festubert (15 May 1915): The Battle of Festubert (15–25 May 1915) was an attack by the British army in the Artois region of France on the western front during World War I.
Turkish attack at Anzac Cove (19 May 1915)
Battle of Bellewaarde Ridge (24 May 1915): On May 24 the Germans released a gas attack that hit Shell Trap Farm and to the area around the north west, which was affected the most by the attack.
Capture of Amara (31 May 1915)

1915 June

Third Battle of Krithia (4 June 1915): The previous failures in the first and second battles resulted in a less ambitious plan being developed for the attack, but the outcome was another costly failure for the Allies.
Attempt to Force the Narrows (18 June 1915)
First Battle of the Isonzo (23 June 1915): The aim of the Italian Army was to drive the Austrians away from its defensive positions along the Soča (Isonzo) and on the nearby mountains.
Battle of Nasiriyeh (27 June 1915)
Battle of Gully Ravine (28 June 1915): The preceding Third Battle of Krithia and the attack at Gully Ravine had limited objectives and had much in common with the trench warfare prevailing on the Western Front.

1915 July

Attack on Ache Baba (12 July 1915)
Second Battle of the Isonzo (18 July 1915): After the failure of the First Battle of the Isonzo, two weeks earlier, Luigi Cadorna, commander-in-chief of the Italian forces, decided for a new thrust against the enemy lines with a heavier artillery support.

1915 August

Battle of Sari Bair (6 August 1915): The Battle of Sari Bair, also known as the August Offensive, was the final attempt made by the British in August 1915 to seize control of the Gallipoli peninsula from the Ottoman Empire during the First World War.
Great Retreat (Russian) (17 August 1915): While the withdrawal itself was relatively well conducted, it was a severe blow to Russian morale.
Battle of Hill 60 (Gallipoli) (21 August 1915): The first assault resulted in limited gains around the lower parts of the hill, but the Ottoman defenders managed to hold the heights even after the attack was continued by a fresh Australian battalion on 22 August.
Battle of Scimitar Hill (21 August 1915): The purpose of the attack was to remove the immediate Ottoman threat from the exposed Suvla landing and to link with the ANZAC sectors to the south.

1915 September

Third Battle of Artois (25 September 1915): The battle is also known as the Loos–Artois Offensive and included the big British offensive by the British First Army, known as the Battle of Loos.
Battle of Loos (25 September 1915): It was the biggest British attack of 1915, the first time that the British used poison gas and the first mass engagement of New Army units.
Second Battle of Champagne (25 September 1915): The German front position was broken in four places and two of the penetrations reached as far as the R-Stellung, where uncut barbed wire prevented the French from advancing further.
Battle of Es Sinn (28 September 1915): The sides fought to determine control of the lower Tigres and Euphrates rivers, in what is now Iraq.

1915 October

Morava Offensive (14 October 1915): In the beginning due to the harsh weather, strong resistance of the defenders and the tough terrain the Bulgarian advance was slow but because defenders were greatly outnumbered.
Ovče Pole Offensive (14 October 1915): Its aim was to seize the Vardar river valley, and to cut the vital railway linking Skopje with Thesaloniki to prevent the Serbian Army from being resupplied and reinforced by the Allied Expeditionary Force.
Third Battle of the Isonzo (18 October 1915): The main objectives were to take the Austro-Hungarian bridgeheads at Bovec (Plezzo in Italian) and Tolmin, if possible the town of Gorizia.

1915 November

Fourth Battle of the Isonzo (10 November 1915): Most of the clash concentrated in the direction of Gorizia and on the Kras Plateau, though the push was distributed on the whole Isonzo front.
Kosovo Offensive (10 November 1915): The battle began with the forcing of the South Morava by the Bulgarian 1st Army and ended with the total defeat of the Serbian army.
Battle of Ctesiphon (22 November 1915): The Battle of Ctesiphon was fought in November 1915 by the British Empire and British India, against the Ottoman Empire, within the Mesopotamian Campaign of World War I.

1915 December

Siege of Kut (7 December 1915): Historian Christopher Catherwood has called the siege "the worst defeat of the Allies in World War I".
Evacuation of Gallipoli (18 December 1915)

HISTORY

A world war is a war involving many or most of the world's most powerful and populous countries. World wars span multiple countries on multiple continents, with battles fought in multiple theatres. The term is applied to the two major international conflicts that occurred during the twentieth century: the First and the Second World War.