The 1st, 6th and 7th Dublins all took part in the Allied Gallipoli Campaign in the Dardanelles after Turkey joined the Central Powers in November 1914. It was an effort to support Russia by keeping the Dardanelles Strait open. The 1st Dublins, as part of 86th Brigade of the 29th Division, landed at V Beach, Cape Helles on 25 April. The 1st Dublins were the first to land, landing via boats that were either towed or rowed, and suffered heavy casualties from a withering hail of machine-gun fire from the Turkish defenders, most not even getting out of their boats, while others drowned in the attempt, most due to the equipment they carried. The 1st Royal Munsters, two companies of the 2nd Royal Hampshires and a company of the 1st Dublins, landed from the SS "River Clyde" soon afterwards and were also decimated by machine-gun fire. In spite of the severe casualties, the British forces managed to land large numbers of troops by nightfall. On the morning of 26 April the British force, including the Dublins, took the fortress, led by Lieutenant Colonel Doughty-Wylie, before moving onto the village of Sedd el Bahr. Lieutenant-Colonel Doughty-Wylie and Captain Walford (who helped organise the attack) both died at the moment of victory. The 1st Battalion sustained just over 600 casualties within the first two days, out of a total of just over 1000 men that had landed. Nearly all of their officers, including Lieutenant Colonel Richard Alexander Rooth, had been killed on the day of the landings. The Battalion and the 1st Munsters had suffered so heavily that they had to form a composite battalion known as the 'Dubsters' on 30 April. Both battalions regained their identity the following month after they received a sufficient amount of replacements. During their time at Helles, the 1st Dublins took part in the numerous attempts to capture Krithia; the first attempt took place on 28 April.