The Royal Navy at the start of the First World War was the largest navy in the world due, in the most part, to The Naval Defence Act 1889 and the two-power standard which called for the navy to maintain a number of battleships at least equal to the combined strength of the next two largest navies. The majority of the Royal Navy's strength was deployed at home in the Grand Fleet, with the primary aim of drawing the German High Seas Fleet into an engagement. The Royal Navy and the German Imperial Navy did come into contact, notably in the Battle of Jutland, but no decisive naval battle came.