page_title: Gallipoli campaign
section_title: Operations: June–July 1915
hierarchical_section_title: Gallipoli campaign / Land campaign / Operations: June–July 1915
caption_attribution_description: English: A bomb thrower, one of the earliest devices for projecting explosive charges short distances, can be seen in the centre of this photograph. It was in effect a miniature medieval-style siege engine which used coiled springs, rubber or torsioned wire as a catapult to hurl grenades. 29th Indian Infantry Brigade was one of the three brigades of the 10th Indian Division, which was formed in Egypt during November 1914. In April 1915 the brigade was detached from the division and sent as reinforcements to Gallipoli.
context_page_description: The Gallipoli campaign, also known as the Dardanelles campaign, the Battle of Gallipoli or the Battle of Çanakkale, was a campaign of the First World War that took place on the Gallipoli peninsula, from 17 February 1915 to 9 January 1916. The Entente powers, Britain, France and Russia, sought to weaken the Ottoman Empire, one of the Central Powers, by taking control of the straits that provided a supply route to the Russian Empire. The Allies' attack on Ottoman forts at the entrance of the Dardanelles in February 1915 failed and was followed by an amphibious landing on the Gallipoli peninsula in April 1915 to capture the Ottoman capital of Constantinople.
  In January 1916, after eight months' fighting, with approximately 250,000 casualties on each side, the land campaign was abandoned and the invasion force withdrawn. It was a costly defeat for the Entente powers and for the sponsors, especially First Lord of the Admiralty, Winston Churchill. The campaign was considered a great Ottoman victory. In Turkey, it is regarded as a defining moment in the history of the state, a final surge in the defence of the motherland as the Ottoman Empire retreated.
context_section_description: In the Helles sector, which had been extensively entrenched by both sides, the Allies attacked Krithia and Achi Baba again, in the Third Battle of Krithia on 4 June, with the 29th Division, Royal Naval Division, 42nd Division and two French divisions. The attack was repulsed and with it, the possibility of a decisive breakthrough ended; trench warfare resumed, with objectives being measured in hundreds of yards. Casualties were approximately 25 percent on both sides; the British lost 4,500 from 20,000 men and the French 2,000 casualties from 10,000 troops. Ottoman losses were 9,000 casualties according to the Turkish Official History and 10,000 according to another account.
  In June, the seaplane carrier HMS Ben-my-Chree arrived and the Allied air effort increased from a squadron to No. 3 Wing RNAS. The 52nd (Lowland) Division also landed at Helles in preparation for the Battle of Gully Ravine, which began on 28 June and achieved a local success, which advanced the British line along the left (Aegean) flank of the battlefield. Sanders credited the defence to two Ottoman officers, Faik Pasa and Albay Refet. On 30 June, the French commander, Henri Gouraud who had earlier replaced Albert d'Amade, was wounded and replaced by his divisional commander, Maurice Bailloud. Between 1 and 5 July, the Ottomans counter-attacked the new British line several times but failed to regain the lost ground. Ottoman casualties for the period were estimated at 14,000 men. On 12 July, two fresh brigades from the 52nd Division attacked at the centre of the line along Achi Baba Nullah (Bloody Valley), gained very little ground and lost 2,500 casualties out of 7,500 men; the Royal Naval Division had 600 casualties and French losses were 800 men. Ottoman losses were about 9,000 casualties and 600 prisoners.
  At sea, the submarine E14 made two voyages into the Marmara. The third tour began on 21 July, when E14 passed through the straits despite a new anti-submarine net placed near the Narrows. The next attempt was made by Mariotte on 27 July, which was caught in the net, forced to the surface and bombarded by shore batteries; Mariotte was scuttled. On 8 August, E11 torpedoed the battleship Barbaros Hayreddin with the loss of 253 men and sank a gunboat, seven transports and 23 sailing vessels.
caption: Troops of the 29th Indian Brigade in trenches at Gallipoli, 1915
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