 Although continuing commercial tensions formed the background to the second war, a group of ambitious English politicians and naval officers frustrated diplomatic efforts to reach any accommodation between the parties.Religious and political differences between the Anglican royalists in England and the Calvinist republicans that formed the ruling group in the Netherlands, each seeing the other as an ideological threat, also hampered agreement.The last major battle of the First Anglo-Dutch War was an English victory in the battle of Scheveningen in August 1653.