 On 6 August 1915, the British launched an offensive on Gallipoli that exposed Turkey's grave shortage of munitions.On 17 August, the Turkish minister of war, Enver Pasha, wrote to the German chief of staff, Erich von Falkenhayn, to see if an Austro-German offensive against Serbia was forthcoming.When told that it hinged on Bulgaria's intervention, which in turn hinged on a Turco-Bulgarian pact, the Ottomans reached a quick agreement with Bulgaria on 22 August.