Complex sentence: On 2 November, 1914 Russia declared war on the Ottoman Empire, Britain followed suit on 5 November and on 12 November 1914, the Ottoman government officially declared war on the Triple Entente.
Split into simpler sentences: On 2 November 1914 Russia declared war on the Ottoman Empire. On 5 November Britain followed suit, and on 12 November 1914 the Ottoman government officially declared war on the Triple Entente.